<unk> , also known as 17α-methyl-δ1-testosterone or as 17α-methylandrost-1,4-dien-17β-ol-3-one, is a synthetic androstane steroid and a 17α-alkylated derivative of testosterone. It is a modification of testosterone with a methyl group at the C17α position and an additional double bond between the C1 and C2 positions. The drug is also the 17α-methylated derivative of boldenone (δ1-testosterone) and the δ1 analogue of methyltestosterone (17α-methyltestosterone). Detection in body fluids<unk>  is subject to extensive hepatic biotransformation by a variety of enzymatic pathways. The primary urinary metabolites are detectable for up to 3 days, and a recently discovered hydroxymethyl metabolite is found in urine for up to 19 days after a single 5 mg oral dose. Several of the metabolites are unique to<unk> . Methods for detection in urine specimens usually involve gas chromatography-mass spectrometry.
Metandienone
Amrinone
Nortilidine
Iofetamine 
Boldenone undecylenate
Colestilan
Verapamil
Amiodarone