1x10 ampoule pack of Masteril 100 mg injection (drostanolone propionate), in original packaging. 75 mm x 130 mm x 10 mm, 47g. Drostanolone is an anabolic steroid. Manufactured by Syntex, Maidenhead, England, expires 1984. 1x10 ampoule pack of Masteril 100 mg injection (drostanolone propionate) 1974-1982