Trimix Injections for Hard Erections- Part 2

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Nelson Vergel

Founder, ExcelMale.com
Thread starter #1
Successful Self Penile Injection with TRIMIX

Hints, Questions and Answers


Written by the UCSF

This document was prepared to make the process as easy and painless as possible for men who have decided to use injection therapy for erectile dysfunction. This document should also be useful to those considering the use of injection therapy.

At the end of the document you will find a list of contributors, a request for feedback, and an index.

It should also be noted that it is not necessary to have an erection to have an orgasm. A vibrator and/or a creative partner can be helpful.

You may want to refer to Tom F. Lue, MD's excellent book A Patient's Guide to Male Sexual Dysfunction for more detail. This book is available online at amazon.com, barnesandnoble.com or ordered through your local bookstore. ISBN: 1884065821, keywords: Male Sexual Dysfunction.



POST PROSTATE SURGERY

Q1. After a nerve sparing Prostatectomy, will injections help recovery of my natural erections?

A1. Yes, if your nerves were spared, the use of injections, which stimulate the flow of blood to the penis, may help the recovery of your natural erections.


Q2. What is the optimal time after surgery to begin injection therapy?

A2. As soon as the patient recovers from surgery and feels OK to start a sexual relationship again, usually 4 to 12 weeks after surgery.


Q3. Will injections work on men with non-nerve sparing prostatectomies? A3. Yes. Injections work independently of the nerves.

POST-RADIATION FOR PROSTATE CANCER

Q4. Are there different recommendations for treating erectile dysfunction with injections for erectile dysfunction resulting from radiation therapy?

A4. There is no difference


INJECTION MEDICATIONS AND MECHANISM

Q5. It seems that there are several different medications suitable for injections. What are they and what are the trade offs?

A5. Each of these medications will work to help you achieve an erection. You should always consult your physician to discuss which is best for you. Some of the medicines currently in use include the following:

1. Papaverine is available at a low cost and is stable at room temperature but is less effective than the other medications and may have a higher tendency to cause scarring (fibrosis).

2. Papaverine plus phentolamine is more potent than papaverine alone but with the same potential side effects such as priapism and scar tissue formation.

3. Alprostadil rarely causes priapism but with its use pain is more common. (Alprostadil is also known as prostaglandinE-1 or PGE-1, in powdered form it may be called Caverject or Edex.)

4. Papaverine plus phentolamine plus Alprostadil (Trimix) is the most potent but requires refrigeration and has the same side effects as Papaverine and Alprostadil.


Q6. How do these medications work to produce an erection?

A6. These drugs create an erection by relaxing the smooth muscles and widening the blood vessels in the penis. They are not dependent on nerve stimulation. For a more complete discussion of how the penis functions see our Your Health Matters document entitled, Managing Impotence - A Patient Guide. Available at: the UCSF Urology Clinic at Parnassus, the UCSF Urologic Oncology Clinic or, the UCSF Cancer Resource Center at Mt. Zion or from the UCSF Urology Website at http://cas.ucsf.edu/urology/patientGuides/neuroMale.html

Q7. Are there long-term side effects to the use of injections? What are they?

A7. One possible side effect is the development of curvature in the erect penis, which can be painful and interfere with intercourse. This is called “Peyronie's Disease.” It is caused by a buildup of plaque or scar tissue inside the penis in the lining of the corpora cavernosa. These are the two sponge-like cylinders running the length of the penis into which the medication is injected. It is relatively rare and can be treated. You can minimize the risk of getting Peyronie's by learning to inject correctly. This is not difficult.

Q8. Are there medical conditions that preclude the use of injections? A8. Yes. 1. Severe scarring of the penis.

2. Allergy to any of the 3 medications.

3. Active infection or sores on the penis.

Note: Blood thinners such as aspirin and Coumadin can increase bleeding. Men may use injection therapy when taking these medications IF they compress the injection site for at least 7 minutes.



ERECTIONS FROM INJECTIONS


Q9. What percentage of men will get a useful erection from an injection? Do injections work for everyone?

A9. If the medication is properly dosed (this is done by your physician) and properly injected, a useful erection should occur in at least 80% of men.

Q10. Does the medication continue to work indefinitely or is a tolerance created requiring increasing dosage?

A10. Both have been seen.


Q11. How long will the erections last?

A11. This depends on a number of factors including: one's general health, current physical status, whether the proper dosage was properly injected and the presence of other stimulation. Erections generally appear in 5 to 10 minutes and on average last approximately 30 minutes.

Q12. Can injections be used with vacuum erection devices?

A12. DO NOT use a vacuum erection device after injecting! Serious bleeding can result. There may be exceptions. Please consult your doctor.


Q13. My medication requires refrigeration. How long can it be left un-refrigerated? A13. Three hours

Q14. If I am traveling, are there medications that don't require refrigeration that I can use in place of my regular medication?

A14. If your standard medication is Alprostadil (Prostaglandin), then Caverject or Edex can be used. These are mixed from a powder at the time of use. Papaverine + phentolamine doesn't need refrigeration.


Q15. What is the definition of priapism?

A15. It is a prolonged erection. This is an easily managed but is a potentially serious complication. If ignored, it may result in severe pain and complete impotence necessitating placement of a penile prosthesis. Therefore, it is very important that if you develop a full erection lasting for more than 4 hours, you should call your doctor at once or go to the emergency room.


Q16. I've heard that Sudafed and Benadryl as well as Terbutaline can reduce a prolonged erection. When should these be used?

A16. If the erection lasts more than 2 hours. If it is still a problem after 4 hours call your doctor or go to the emergency room.

Q17. Can I use an ice pack to reduce an erection? Where and how should it be applied?

A17. Yes, on the penis or inner part of thighs. (A cold shower also works.) Again, if it is still a problem after 4 hours call your doctor or go to the emergency room.


INJECTION MECHANICS

Q18. When filling the syringe, I have heard that that the plunger should be pulled down to the 1.0 cc mark before pushing the needle through the rubber stopper. Once the needle is pushed through the rubber stopper, the plunger should be pressed on, pushing the air into the ampoule before withdrawing the medication. Is there an advantage to this procedure?

A18. It makes withdrawing the medication easier.


Q 19. Where in the penis do I want the medication to go? What structures am I aiming for and which do I want to avoid?

A19. After cleaning with alcohol swab, insert needle into side of penis and inject medication. Alternate between injecting at the 3 and 9 o'clock positions. You will be injecting into the corpus cavernosum (erectile bodies). When choosing an injection site, avoid any area were a blood vessel is clearly visible.


Q20. Besides the 3 and 9 o'clock positions, I've also been told that I can inject at 2, 4, 8 and 10 o'clock positions. Does it matter?

A20. 2, 4, 8, and 10 are all OK, but 3 and 9 are the best.


Q21. What should I feel when I inject? Will it hurt? Should I feel resistance? Can I feel if the needle is in too deep or too shallow?

A21. As there are few nerve endings for pain in this area, there will probably be just a slight momentary discomfort. The needle should be pushed firmly until it is fully in the penis, slight resistance may be felt. An auto-injector may reduce even further this momentary pain.


Q22. Are there any cues you can give me to tell when I'm in the right place? Sometimes I feel more resistance to the plunger than other times; when that happens, the injection usually fails. Why? What should I do?

A22. The amount of resistance to pushing the plunger is one of the best indicators of good needle placement. If a lot of resistance is felt then the needle may be in too far or not far enough. Pull the needle back a little or push it in further. If that does not work withdraw the needle and reinsert it in another suggested place. The plunger should depress quite easily. Your doctor can demonstrate. Do not inject if the resistance is strong.

Q23. If I don't get any response to an injection can I follow up with another injection maybe to a different side of the penis and perhaps using a smaller dose?

A23. No, the first injection may have punctured the urethra or other tissue. A second injection may cause more bleeding in the wrong area. The next time you inject (on another day) do it on the other side of the penis.

Q24. I'm bothered by the pain of the injection, are there topical anesthetics that I can use? A24. Yes, any local anesthetic such as xylocaine jelly or cream will help. EMLA, a combination of 2.5% lidocaine and 2.5% prilocaine, is available with a prescription. ELA-Max, 4% or 5% lidocaine is available over the counter, without a prescription.

Q25. Are there thinner needles available that could be used to reduce discomfit?

A25. This is not recommended. Needle breakage has been reported with 30 gauge needles and smaller. (See following question on auto injectors.)


Q26. What's an autoinjector and how might it help me?

A26. An auto-injector is a spring-loaded device, which inserts the needle into the penis very quickly, minimizing the discomfort and psychological “hesitancy.” It comes in two forms, a simple non-prescription device designed to insert the needle for you and a prescription-required device that also depresses the plunger for you. You can check with your local drug store to obtain the simple auto-injector (no prescription required).

Moreover, many men prefer the autoinjector that does not inject the medications for them because they maintain the necessary feel to know that they have injected in the rightplace and to the right depth (The patient still pushes the plunger, there is no pain associated with this.) If the plunger does not push easily, as happens on occasion, withdraw the needle a little and try the plunger again. If it is still difficult to push the plunger then use the autoinjector in a different location in the penis.

Many men are happy using the autoinjector. Check with your local drug store to obtain one. Some men have personal experience with the Becton Dickinson “Inject-Ease” automatic injector, but there are other brands available. They are not very expensive.


Auto-Injection Technique. The medication is drawn into the auto- injector. The side of the penis is cleaned with an alcohol swab and the injector placed against the penis. Pressing a button then activates the injector and the needle is automatically inserted.


Q27. Can I use 'needleless' injections systems like are being used by diabetics?

A27. No, they only place medications into the skin. The medication needs to go in to the deeper tissue (corpora cavernosa).


Q28. At what angle should the needle enter the penis? Should it be 90 degrees or a shallower angle to stay away from the urethra?

A28. The angle of injection can be defined in two different mutually independent ways. One way is as seen from above and the other way is as seen in a “front view.” Ninety degrees should be used in every view.

Injecting the needle at 90 degrees will ensure that you will not puncture the urethra. A shallow injection should not be used because the medication will not get into the corpora cavernosa, and not be effective.


Q29. Sometimes I see a tiny amount of blood from the injection site just when the needle is withdrawn and sometimes I don't. Why? Is it a problem either way?

A29. It depends on whether or not you hit a small blood vessel. It is not a problem.


Q30. What's the best way to hold the penis for the injections? Should the penis be pulled to maximum extension? Should I pull just the outer layer or the whole penis?

A30. If you need to, you should pull the whole penis. But some men find it best to lay the penis along one leg while injecting, without pulling.


Q31. Is it important to apply pressure to the injection site for a full 5 minutes after injections? Aren't a few minutes enough?

A31. Five minutes is best. On the needle site, using an alcohol swab. Immediately apply pressure to the penis with the thumb and index finger for 5 minutes, or longer if there is still bleeding.

Q32. Should I vary the injection site? What is the best way to do that?

A32. The places for injection are limited by the anatomy of the penis and you must adhere to these. Changing injection sites from left to right and back again is recommended.


Q33. Is it important to get all the bubbles, even the littlest, out of the syringe before injection?

A33. Removing those as small as poppy seeds is not necessary.


DOSAGE, etc.


Q34. How is the correct dosage determined? How do I know when I have the right dose?

A34. Dose consists of both the strength of the medication and the amount used. With the appropriate strength and amount of drug as determined by a physician (usually less than 1cc), erections usually occur in 5 to 10 minutes, last for approximately 30 minutes to an hour, and become more rigid if sexual stimulation occurs.



Q35. Is sexual stimulation required for an erection? Can I use less medication if I have more stimulation?

A35. Stimulation is not required but may speed things up a bit. You may be able to use less medication with stimulation.

Q36. Sometimes a dose that has worked fine before, produces no erection. I'm sure I
injected in the right place. What happened?

A36. You were probably in the wrong place or too deep or too shallow, or the medication had expired (lost its effectiveness).

Q37. My instructions say not to inject more than twice a week. What's the reason for not injecting every day, for example?

A37. Injecting into the penis frequently may cause scarring.


Q38. Does the medication lose potency over time even if stored correctly? A38. Yes, after about six months the medication will be less effective.

Q39. Will I develop a tolerance over time requiring an increasing dose?

A39. This occurs infrequently but if it does, your physician may have to readjust the dosage of medication.

PROBLEMS

Q40. What, if any lasting damage can be done to the penis by the wrong injection technique? Can just one injection if done incorrectly cause permanent damage?

A40. Yes, although it is rare, scarring can occur (Peyronie's disease). If a patient injects too much medication it could cause priapism and damage to the erectile tissue. Not compressing the injection site after injection may cause internal bleeding and scar tissue.


Q41. After an injection I've seen blood coming from the urethra. What happened? What should I do immediately if this happens?

A41. You have punctured the urethra. Grab the whole penis and squeeze for 5-7 minutes.

Q42. What happens if I accidentally hit a large blood vessel? What should I do?

A42. If bleeding continues after applying pressure, abstain from intercourse until
bleeding stops. Continue to apply firm pressure until bleeding stops.


Q43. Do infections ever develop from injections? How common is this?

A43. This happens very rarely.

Q44. Does the injection site make me more susceptible for contracting a sexually transmitted disease?

A44. Possibly, but not likely. If in doubt, put on a condom.

Q45. Can injections be used while taking Viagra orally? If so, can a lower dose be used?

A45. You should not inject and take Viagra at the same time. Using both treatments together causes an increased possibility of priapism. (Consider alternating using Viagra and injections.)

Q46. After using injections for a while my erections have developed a curvature. What's happening?

A46. The injections may have caused some scar tissue to have formed. This condition is called Peyronie's disease. Talk to your doctor about causes and treatment.

Q47. Does this curvature develop for all men using injections? A47. No, only 3-8 percent of men.

Q48. Can this problem be the result of improper injection technique?

A48. Yes. The patient must make sure that he maintains pressure on the injection site for 5 minutes to stop bleeding; including possible internal bleeding that will not be seen. Also, attention must be paid to the doctor's instructions on where to inject, the alternation of injection sites, and the frequency of injections.

Q49. It is difficult for me to inject on both sides, because I am right handed I have difficulty injecting on one side. I inject less than 100 times a year. Is it crucial to inject both sides?

A49. It is better if you can inject both sides. You can't go wrong with alternating sides even if you only use injections monthly. However, you do not need to change sides if injections are used less than twice a week.

Q50. Can just one injection cause Peyronie's disease?

A50. If too much medication is injected or if the medication is injected incorrectly it is possible but not likely.

Q51. Can men that develop curvature continue to safely use injections? A51. If it is a mild curvature.

Q52. Are there medications that can be helpful? (to treat curvature of the penis?)

A52. Colchicine may be helpful in the early phases of Peyronie's disease.

Q53. Can surgery be useful?

A53. Yes, but only when the condition has stabilized, and after non-surgical treatments have failed.

IN THE FUTURE

Q54. What kinds of medications or procedures are on the horizon to help men with erectile dysfunction?

A54. Prostaglandin, which is currently injected and used as a urethral suppository, is being tested in a clinical trial for a new use. This trial is to put prostaglandin gel to the urethral opening at the tip of penis. New pills and nasal sprays are being tested in the laboratory and in clinical trials including medications that would be given at the time of prostate surgery to protect the cavernous nerve.
 
Last edited:

Nelson Vergel

Founder, ExcelMale.com
Thread starter #3
Intracavernosal Injection

An intracavernous injection, according to the American Urologic Association, is the most effective non-surgical treatment for ED. Injections into the penis,unlike oral medications, trigger an automatic erection. Injection can be done by the individual 5 minutes prior to sexual activity and should last for no more than 1 hour. Injection is considered second line to be used if oral therapy fails. Compounds that can be injected include alprostadil, papaverine,and phentolamine. Alprostadil and phentolamine are the most common agents used as monotherapy. However, combination therapies are used to increase efficacy and decrease side effects. Combination therapy includes TriMix and BiMix.Both products are not commercially available and must be compounded by specialty pharmacies. Below is a description of the medications that are inTriMix and BiMix including mechanism, dose and side effects of each agent.

Alprostodil

- Commercially available for monotherapy as Caverject® and Edex®
- Mechanism: a prostaglandin E1 that stimulates the relaxation of the smooth muscle and dilates arteries in the penis increasing blood flow
- Studies have shown efficacy in 75% of men when injected into the penis
- Usual dose: start at 10-15 mcg inpatients who have failed oral therapy or 2.5-5 mcg in patients who have neurogenic or psychogenic ED and have failed or declined oral therapy
- Median dose is 12-15 mcg. Benefit is not seen at doses greater than 40 mcg. It is recommended to try a drug combination that includes papaverine, phentolamine or both.

- Side Effects

o Priapism: prolonged erection lasting more than 4 hours- must seek medical attention
o Penile pain- during or immediately after injection, occurs in upto 31%, may be reduced if mixed with other agents
o Bruising at injection site- can be minimized with a 30G needle,should be minimal with proper injection technique
o Hypotension- occurs when drug leaks out of injected area intogeneral circulation. Rare with alprostadil.
o Fibrosis- scarring of penile tissue is lower with alprostadil, may result after long term use of injection therapy
o Occasional increase in liver function tests

Phentolamine

- Commercially available as Regitine®
- Mechanism: alpha-adrenergic antagonist that produces a direct vasodilation in the arteries increasing blood flow to thepenis.
- Usual Dose: 1 to 2 mg

- Side Effects

o Painful prolonged erection lasting more than 4 hours
o Fibrosis- penile scarring
o Systemic hypotension (low blood pressure)
o Reflex tachycardia (increase in heart rate)
o Nasal congestion
o Gastrointestinal upset

Papaverine

- Not commercially available and must be used with phentolamine to produce hard erections.
- Mechanism: Phosphodiesterase inhibitor that results in smooth muscle relaxation allowing for an increase in blood flow to the penis. It’s used mainly in combination with alprostadil and/or phentolamine. Although it has been used since the early 1980’s, it is not approved for ED.
- Usual dose ranges from 5 to 30 mg

- Side effects

o Priapism- high rate of 1-6%
o Fibrosis- highest rate and can present as a lump within the penis
o Hypotension


Combination Therapy

Bi-Mix: Papaverine + Phentolamine

Bi-Mix was first introduced by a study in 1985 that showed a success rate of71% amongst 250 patients that were given 1 mg of phentolamine mixed with 30 mg of papaverine. In 1987, 2 more studies were published. One study showed that phentolamine mixed with papaverine had a 72.9% success rate verse 20% with papaverine alone. In another study, papaverine mixed with phentolamine was examined for a follow up of 26 months. Only 13% of the patients failed to respond to therapy.
Click Here For Study Information

- Usual prescribed strength: Papaverine 6-25 mg + Phentolamine 0.05-2.0mg/ml


TriMix: Papaverine,Phentolamine, Alprostadil

TriMix is a compounded medication the combine’s papaverine, phentolamine and alprostadil in one vial to achieve maximum efficacy, lower incidence of pain,and lower cost per dose. Studies have been done that have shown the efficacy of all three agents combined into one formulation. Combination therapy was first introduced in 1991 by Bennett and his colleagues who demonstrated a success rate of TriMix of 92% in 116 patients. TriMix is often reserved for patients who fail alprostadil (PGE-1), fail Bi-Mix or for patients with severe penile pain from prostaglandin E1. Since TriMix uses lower doses of alprostadil,penile pain often subsides.

Click Here For Study Information

- Usual prescribed strength: Papaverine 18-25mg + Phentolamine 1.0-2.0mg +Prostaglandin E1 10-25mcg/ml


Quad-Mix: Papaverine,Phentolamine, Alprostadil, Atropine

Quad-Mix includes the addition of atropine which may work synergistically tocause smooth muscle relaxation in the penis. In a study conducted by Israilov and colleagues, 13 patients that failed trimix had a positive response to quad-mix. Seven (53.8%) of the patients responded successfully with the additionof atropine.
Click Here For Study Information

- Usual prescribed strength: Papaverine 20-25mg + Phentolamine 1.5-2.0mg +Prostaglandin E1 20-25mcg + Atropine 0.02-0.08mg/ml
 
Last edited:

Nelson Vergel

Founder, ExcelMale.com
Thread starter #7
Here is a video for penis injection technique of Trimix

[video=vimeo;20604125]http://vimeo.com/20604125[/video]
 
Last edited:

Nelson Vergel

Founder, ExcelMale.com
Thread starter #10
Super Trimix: Pentamix

Some men have decreased effectiveness of Trimix after a few years of use. A small percentage of men do not respond well to Trimix. A new formulation called Pentamix is available from EmpowerRxpharmacy.com

PENTA-MIX INJECTION (PAPAVERINE, PHENTOLAMINE, ALPROSTADIL, FORSKOLIN, VIP)

Pharmacologic Category: Anti-erectile dysfunction agent

What is this medicine used for? Treatment of erectile dysfunction in males. Penta-Mix contains four drugs mixed in a sterile injection.

They are:

1.) Papaverine: A drug that causes blood vessels to expand (vasodilator): it produces an erection by increasing blood flow to the penis.
2.) Phentolamine: When injected into the penis, this vasodilator increases blood flow to the penis, which results in an erection.
3.) Prostaglandin E-1: A potent hormone-like substance that can control blood pressure.
4.) Forskolin: Stimulates adenylyl cyclase which relaxes a variety of smooth muscles increasing blood flow to the penis.
5.) Vasoactive Intestinal Polypeptide: Causes a relaxant effect on cavemous smooth muscle.

http://www.empowerrxpharmacy.com/drugs/penta-mix-injection.html
 
Last edited:

Nelson Vergel

Founder, ExcelMale.com
Thread starter #12
For those of you who want to carry pre-loaded TRIMIX syringes in your escapades or if you travel to your sex partner, this carrying case is cool. It prevents unintentional pushing of the plunge.

"The Wright Prefilled Syringe Case makes transportation of prefilled syringes as simple as carrying a fountain pen. Designed to fit in a pocket or purse the Wright Prefilled Syringe case holds most E-Z JECT B-D PharmaPlast and TERUMO syringes (not compatible with Monoject syringes). The interior is designed to safely hold the syringe plunger in your preset position with the approximate dosage. Constructed of impact resistant polypropylene the kit comes with one black and one white case. The safest way to carry prefilled syringes. Snaps shut. Fits popular syringes. Carry in pocket or purse. Contains a black and white case. Syringe not included."

Wright Prefilled Syringe Carrying Case - Pack of 2
 

Nelson Vergel

Founder, ExcelMale.com
Thread starter #13
HOW TO PREVENT PRIAPISM CAUSED BY TRIMIX


What is priapism:

Priapism is an involuntary erection which lasts more than 4 hours and is unrelieved by ejaculation. This condition is a true urological emergency and early treatment allows the best chance for functional recovery.

How to prevent priapism when taking Tri-Mix or other penile injection therapies (ICP):

· NEVER take Tri-Mix or any ICP injection within same 24hr period as Viagra/Cialis/Levitra or other ED meds.
· Start LOW and go SLOW with your dose. Never start higher than 0.05-0.12ml (5-12 units on syringe) for the FIRST injection. Then gradually increase from there for optimal results.

If priapism occurs:

-Apply ice to perineum/scrotal area- You can use a frozen bag of fruit or vegetables if an ice pack is not available.
-Walk/jog upstairs- This can help redirect blood flow from the penis.

Over-the counter medications to take:

-Sudafed – take 60mg-150mg orally
-Benadryl - take 25mg-50mg orally
-Amyl Nitrate: “Poppers” is another name Amyl Nitrate and is sold in “head shops” or “smoke shops” as an “air freshener”. It is also available online. Many guys who are very experienced with ICP injections use Amyl Nitrate to treat priapism when it occurs. It is very safe if used properly. The possible side effects include headaches, decreased blood pressure and potential loss of arousal after a few minutes.

How to use amyl nitrate to treat priapism: Usually sold as “poppers”, amyl nitrate usually comes in a bottle containing breakable capsules. You do not take amyl nitrate orally, instead break the capsule and inhale (sniff) the broken capsule. Inhale over 15-30 seconds or for 2-6 nasal inhalations to help reverse erection.

Prescription medications

Terbutaline- 10mg once, then take another 5mg-10mg 15 minutes after the first dose only if needed. If you have been prescribed Tri-Mix or any other ICP injection and are concerned about priapism you may request a prescription for Terbutaline to have on hand.

If these do not work and erection has been present for 4hrs and/or is painful then immediately visit the ER for treatment.
 

Nelson Vergel

Founder, ExcelMale.com
Thread starter #14
Trimix Access Program

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Trimix click here. Complete the health questionnaire and consent to treat forms located ...

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Trimix without much result. The last injection I tried was 40 units. What is the maximum number of units to use safely?

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I have been trying

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trimix be an option for him?The girth of his flacid penis would concerns me on if it would be safe to inject into the right ...

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My question is,would

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Trimix the Ultimate Solution for ED

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Trimix for me. We did a test in his office to make ...

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As I am one not to sit on my ass and let things get worse I spoke to my TRT Doc who prescribed

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trimix access program from Defy and what that experience has been. JW.

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Just wondering if anyone has has used the

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Penis Injections for Hard Erections: TRIMIX - Page 2

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Trimix or Quadmix—Available by prescription from compounding pharmacies. These are mixtures of prostaglandins and papaverine that ...

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If I injected, then went out to dinner, would

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If you do, you won't end up in the hospital. Do exactly as instructed and you won't have a problem. I've probably used

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Using TriMix in a gel form for ED

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TriMix in a gel form? Not being a great advocate of the bruising I often get with injections nor wanting to carry the syringes ...

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Has anyone tried

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Nelson Vergel

Founder, ExcelMale.com
Thread starter #18
Papaverine/phentolamine/PGE1 (P/P/P) combination therapy (TRIMIX)

Each of the individual vasoactive agent (papverine, phentolamine and PGE1 ) has associated limitations at physiologically active dose concentrations. These shortcomings prompted the combining of papaverine, phentolamine and PGE1 for therapy (Bennett, Carpenter and Barada, 1991). As each agent acts on a specific site in the erection process, resulting in smooth muscle relaxation and arterial inflow, it is possible to take advantage of synergism at very low doses of each individual agent.

Overall, 78 patients (74 percent) were maintained at a volume of 0.25 ml per injection with a frequency of use averaging 3.1 times per month. Two patients (1.9 percent) had prolonged erections (greater than six hours) requiring treatment; both had a psychogenic etiology. Two patients (1.9 percent) complained of pain at the injection site or with intercourse, prompting one to discontinue therapy. With an average followup of 12.7 months, no patient had corporal fibrosis.

In a later study (Barada and Bennett, 1991), 110 patients with 12 to 28 months of follow up were contacted. Sixty-five percent continued injection therapy. Of these, 89 percent were satisfied with the drug combination as a treatment option. Seven prolonged erections (5.6 percent) greater than three hours occurred, but only one patient required intervention. No patient treated exclusively with P/P/P therapy developed fibrosis or nodules.
Goldstein, Borges, Fitch, et al. (1990) used a similar combination of P/P/P in 32 patients who had failed previous pharmacotherapy with papaverine/phentolamine or PGE1 alone. Twenty patients (62 percent) had erections sufficient for satisfactory intercourse. Eight patients (25 percent ), six of whom were diabetic, reported pain with injection. No systemic side effects or prolonged erections.

Bennett et al. performed a diagnostic evaluation of 116 patients with the P/P/P combination using a starting volume of 0.25 ml containing a total of 4.4 mg papaverine, 0.15 mg phentolamine and 1.5 µg PGE1. A lower dose was used in patients with suspected psychogenic and neurogenic etiology.

Eighty-nine percent of the patients had a positive response and went on to home injection therapy.
Hamid, Dhabuwala and Pontes (1992) used patients with erectile dysfunction at a dose range of 0.05 to 0.35 ml. A positive response was seen in 88 patients, and only five complained of pain at the injection site. One patient required corporal aspiration for a prolonged (four hours) erection.

McMahon (1991), in a randomized crossover study of 228 patients, compared the P/P/P combination with papaverine/phentolamine and PGE1 alone. In men with severe arteriogenic or mild corporovenous occlusive disease, P/P/P was significantly better, with a lower incidence of prolonged erection when compared to papaverine/phentolamine (0.9 versus 7.9 percent).

In summary, a combination of papaverine, phentolamine and PGE1 has been used for the treatment of erectile dysfunction. The available data indicate that this vasoactive agent combination has a success rate equivalent to that of PGE1 alone, with a lower cost and lower incidence of painful erections than PGE1 alone. Further clinical evaluation is required to determine the long-term effects of this combination therapy.

Source: Attached file.
 

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