Drug interaction presenting as acute abdomen

Table 1 Commonly used drugs in clinical setting that potentiate warfarin effects[2]

Category	Drugs
Antibiotics	Co-trimoxazole, erythromycin, isoniazid, fluconazole,
	miconazole, metronidazole, ciprofloxacin, itraconazole
	and tetracycline
Cardiac drugs	Amiodarone, clofibrate, propafenone, propranolol,
	and sulfinpyrazone, quinidine, simvastatin, and
	acetylsalicylic acid
Others	Phenylbutazone, piroxicam, acetaminophen,
	dextropropoxyphene, cimetidine, omeprazole, alcohol
	(only if concomitant liver disease was present), chloral
	hydrate, disulfiram, phenytoin, tamoxifen, anabolic
	steroids, and influenza vaccines