(d) By inclusion of the 2-amino nitrogen atom in a cyclic structure. Examples of substituted cathinones include, but are not limited to, methylone (3,4-methylenedioxymethcathinone), MDPV (3,4-methylenedioxypyrovalerone), mephedrone (4-methylmethcathinone), 4-methoxymethcathinone, 4-fluoromethcathinone, 3-fluoromethcathinone, Pentedrone (2-(methylamino)-1-phenyl-1-pentanone), pentylone (1-(1,3-benzodioxol-5-yl)-2-(methylamino)-1-pentanone), 2-(1-pyrrolidinyl)-1-(4-methylphenyl)-1-propanone, alpha-PVP (1-phenyl-2-(1-pyrrodinyl)-1-pentanone), cathinone (2-amino-1-phenyl-1-propanone), and methcathinone (2-(methylamino)-propiophenone).
Anticoagulants: Patients on anticoagulants such as warfarin should be carefully monitored during anabolic steroid therapy as anabolic steroids may increase sensitivity to oral anticoagulants which may require a concomitant reduction in anticoagulant dosage to achieve a desirable prothrombin time (PT). Anticoagulant patients should be monitored regularly during anabolic steroid therapy, particularly during initiation and termination of therapy. Warfarin patients should have INR and PT monitored throughout androgen therapy and warfarin dosages titrated to achieve the desired INR and PT. Such patients should be monitored for occult bleeding.