EFFICIENCY AND SAFETY OF COMBINING LONG-ACTING AND SHORT-ACTING PDE5 INHIBITORS

madman

Super Moderator
Introduction

Erectile dysfunction is a condition that affects many men worldwide, significantly impacting their quality of life. PDE5 inhibitors (PDE5i) are commonly prescribed medications for treating this condition, but some patients do not adequately respond to these treatments.


Objective

This study aims to evaluate the efficacy and safety of a combination of long-acting and short-acting PDE5 inhibitors in non-responding patients.


Methods

The study was conducted on 40 men with erectile dysfunction refractory to PDE5 inhibitors. Participants were evaluated using questionnaires, clinical examinations,and paraclinical tests. All patients received a combination treatment of daily 5 mg tadalafil and 100 mg sildenafil ondemand, one hour before sexual intercourse. Patients were followed up for 12 weeks, and the results were assessed using questionnaires and recording of side effects.


Results

The average age of the participants was 47.4 years.The main etiologies of erectile dysfunction were vascular, psychogenic, age-related, or neurological. After 6 weeks of treatment, a statistically significant improvement was observed in erectile function scores (SHIM) and erectile rigidity scores (EHS). This improvement was maintained until the 12th week, although not significantly. Side effects were generally minor and well-tolerated.


Conclusions

The combination of long-acting and short-acting PDE5 inhibitors proved to be effective and safe in nonresponding patients to PDE5 inhibitors. This therapeutic approach offers a promising alternative before resorting to other more invasive options, such as prostaglandins or penile prosthesis. The combined use of these two types of inhibitors improves erectile function while minimizing undesirable side effects. Further studies could explore the addition of vacuum devices, shockwave therapy, or platelet-rich plasma injections to optimize outcomes. Overall, this study provides valuable insights for urologists in the treatment of non-responding patients to a single type of PDE5 inhibitor, opening up new therapeutic perspectives.
 

Attachments

hCG Mixing Calculator

HCG Mixing Protocol Calculator

TRT Hormone Predictor Widget

TRT Hormone Predictor

Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

Predicted Hormone Levels

Enter your total testosterone value to see predictions

Results will appear here after calculation

Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

Beyond Testosterone Podcast

Online statistics

Members online
5
Guests online
173
Total visitors
178

Latest posts

Back
Top