Vit B
12: Decreased absorption by aminoglycosides, colchicine, ER K prep & aminosalicylic acid & salts, anticonvulsants (eg, phenytoin, phenobarb, primidone), cobalt irradiation of the small bowel, excessive alcohol intake; increased neomycin-induced malabsorption. α-lipoic acid: Medications that lower blood sugar eg, metformin, glyburide. Inositol: Anticoagulants/antiplatelet drugs.