DEPO-Testosterone Injection, for intramuscular injection, contains testosterone cypionate which is the oil-soluble 17 (beta)- cyclopentylpropionate ester of the androgenic hormone testosterone.

Testosterone cypionate is a white or creamy white crystalline powder, odorless or nearly so and stable in air. It is insoluble in water, freely soluble in alcohol, chloroform, dioxane, ether, and soluble in vegetable oils.

The chemical name for testosterone cypionate is androst-4-en-3-one,17-(3-cyclopentyl-1-oxopropoxy)-, (17β)-. Its molecular formula is C₂₇H₄₀O₃, and the molecular weight 412.61.

The structural formula is represented below:

DEPO-Testosterone (testosterone cypionate injection) Injection is available in two strengths, 100 mg/mL and 200 mg/mL testosterone cypionate.

Each mL of the 100 mg/mL solution contains:

Testosterone cypionate...........................................100 mg
Benzyl benzoate...........................................0.1 mL
Cottonseed oil...........................................736 mg
Benzyl alcohol (as preservative)...........................................9.45 mg

Each mL of the 200 mg/mL solution contains:

Testosterone cypionate...........................................200 mg
Benzyl benzoate...........................................0.2 mL
Cottonseed oil...........................................560 mg
Benzyl alcohol (as preservative) ...........................................9.45 mg

Last reviewed on RxList: 8/25/2009
This monograph has been modified to include the generic and brand name in many instances.