When did Desmo Testex Prolongatum stop adding preservative

[Keepfit1]

I heard Desmo Testex Prolongatum stopped adding preservative at a certain batch numbers. Does anyone know at which batch numbers they stopt adding preservatives. I ask this because I take the 250mg/2ml solution from several ampules and put the contents in to a 10ml vial and get through the vial in a few months but can’t do that if there is no longer preservative in the Testex. I have some unopened ampules from some time ago and some I got this week all with different batch numbers but I don’t know which batch numbers if any have the preservative in. I got them in Spain.

 

[madman]

I heard Desmo Testex Prolongatum stopped adding preservative at a certain batch numbers. Does anyone know at which batch numbers they stopt adding preservatives. I ask this because I take the 250mg/2ml solution from several ampules and put the contents in to a 10ml vial and get through the vial in a few months but can’t do that if there is no longer preservative in the Testex. I have some unopened ampules from some time ago and some I got this week all with different batch numbers but I don’t know which batch numbers if any have the preservative in. I got them in Spain.View attachment 54367View attachment 54368View attachment 54369

All you would need to do is look over the package insert/leaflet which will list the composition of the formula (esterified T (prodrug), carrier oil (vehiculum) and excipient.


- esterified T (prodrug) whether (undecanoate/cypionate/enanthate/propionate/ or mixed esters)

- carrier oil (vehiculum) such as (sesame, cottonseed, castor, peanut, grapeseed)

- excipient such as:

Benzyl alcohol • Solubility enhancer • Oil viscosity reducer • Local anesthetic • Preservative

Benzyl benzoate • Solubility enhancer • Solvent

Ethanol • Solvent

Chlorobutanol • Preservative


Preservatives like BA or chlorobutanol prevent microbial growth in multi-dose vials.

Your testosterone 17β-cyclopentylpropionate or TC comes in single-use glass ampoules (2 ml each), which are sterile-sealed and intended for immediate one-time injection.

They do not need a preservative.

From my understanding they have never used one.

If you look through the public databases and check the inserts/leaflets from 2020-2025 they do not list any preservative.



Most recent package insert/leaflet.

https://cima.aemps.es/cima/pdfs/es/p/27691/Prospecto_27691.html.pdf

Composition of Testex Prolongatum

The active ingredient is testosterone cyclopentylpropionate. One ampoule contains 250 mg of testosterone cyclopentylpropionate (corresponding to 174.8 mg of testosterone) in 2 ml of solution.
The other components (excipients) are: ethyl oleate and olive oil.”



28046 Madrid, Spain
Manufacturing responsible:
B. Braun Medical, S.A.
Ronda de Los Olivares, parcel 11,
Los Olivares Industrial Park,
Jaén 23009.
Spain
Date of the last revision of this prospectus: April 2025
Detailed and updated information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS).
Portada

 

[Keepfit1]

All you would need to do is look over the package insert/leaflet which will list the composition of the formula (esterified T (prodrug), carrier oil (vehiculum) and excipient.


- esterified T (prodrug) whether (undecanoate/cypionate/enanthate/propionate/ or mixed esters)

- carrier oil (vehiculum) such as (sesame, cottonseed, castor, peanut, grapeseed)

- excipient such as:

Benzyl alcohol • Solubility enhancer • Oil viscosity reducer • Local anesthetic • Preservative

Benzyl benzoate • Solubility enhancer • Solvent

Ethanol • Solvent

Chlorobutanol • Preservative


Preservatives like BA or chlorobutanol prevent microbial growth in multi-dose vials.

Your testosterone 17β-cyclopentylpropionate or TC comes in single-use glass ampoules (2 ml each), which are sterile-sealed and intended for immediate one-time injection.

They do not need a preservative.

From my understanding they have never used one.

If you look through the public databases and check the inserts/leaflets from 2020-2025 they do not list any preservative.



Most recent package insert/leaflet.

https://cima.aemps.es/cima/pdfs/es/p/27691/Prospecto_27691.html.pdf

Composition of Testex Prolongatum

The active ingredient is testosterone cyclopentylpropionate. One ampoule contains 250 mg of testosterone cyclopentylpropionate (corresponding to 174.8 mg of testosterone) in 2 ml of solution.
The other components (excipients) are: ethyl oleate and olive oil.”



28046 Madrid, Spain
Manufacturing responsible:
B. Braun Medical, S.A.
Ronda de Los Olivares, parcel 11,
Los Olivares Industrial Park,
Jaén 23009.
Spain
Date of the last revision of this prospectus: April 2025
Detailed and updated information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS).
Portada

Thanks for all the info, I think

 

[Keepfit1]

Thanks for all the info. I think Testex did have a preservative in it. I was first given it by The Mens Health Clinic in the UK , the procedure was put the contents of several ampoules into a 10ml vial and use over a few months. I’ve done this for several years and so have all the clinic members on cypionate, no problems. However earlier this year the clinic emailed everyone saying that Desmo announced after a certain batch number they were stopping putting preservative into the Testex. The clinic took patients off Testex and issued another brand in 10ml vials ready filled, presumably containing preservative. I am no longer a patient in the clinic so I can’t ask them at what batch number the preservative stopped, they might not know anyway. I am currently in Spain and the pharmacist said the current batches don’t contain preservative. I of course don’t want to throw away any vials with preservative but need to be careful. I may try e mailing Desmo in Spain.