Oral anticoagulants, lithium, methotrexate, cardiac glycosides, ACE inhibitors, ciclosporin, tacrolimus, diuretics, K-sparing diuretics, β-blockers, quinolones, phenytoin, sulfonylurea antidiabetics, moclobemide, corticosteroids, antiplatelets, alcohol, bisphosphonates, oxpentifylline, zidovudine, ritonavir, mifepristone & misoprostol.