Increased hypoglycemic effect w/ ACE inhibitors, alcohol, allopurinol, analgesic (eg, azapropazone, phenylbutazone, salicylates), azole antifungals (eg, fluconazole, ketoconazole, & miconazole), chloramphenicol, cimetidine, clofibrate, & coumarin anticoagulants, fluoroquinolones, heparin, MAOIs, ranitidine, sulfinpyrazone sulfonamides (eg, co-trimoxazole), tetracyclines, TCAs. Increased hyperglycemic effect w/ octreotide.