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COX-2 INBITITORS 

• Celecoxib

OPIODS

• Morphine

• Codeine

• Pethidine

• Fentanyl

• Tramadol

• Methadone

OTHERS

• Acetaminophen

ANTI ARRYTHMIC DRUG

• Qunidine

• Procainamide

• Phenytoin 

• Amiodarone

• Adenosine

ANTI COAQULANTS

• Heparine

• Warfarin

ANTI MALARIAL DRUGS

• 4 – Aminoquinolines – Chloroquine, Amodiaquine

• Quinolone – Methanol, Mefloquine