Description
Testocyl PH® is a sterile oily solution containing testosterone phenylpropionate, an esterified form of testosterone. The phenylpropionate ester is attached to the 17β-hydroxyl group of the testosterone molecule and increases its lipophilic character for an oil-based injectable preparation.
The oily injectable form is suited to this esterified testosterone compound for deep intramuscular administration. After injection, the oil phase forms a depot from which the esterified substance is released before enzymatic hydrolysis of the ester bond yields testosterone. Compared with shorter propionate and longer enanthate or cypionate esters, the phenylpropionate ester gives the preparation a distinct intermediate ester profile.
Further details on composition, method of use, precautions, possible side effects, contraindications and storage are provided in the package leaflet.