Pharmacology Respiratory system 7aa03a0f Drug used in heparin overdose is A Protamine sulfate B Phylloquinone C Ticlopidine D Clopidogrel High-Yield Explanation Refer Katzung 11/e p 593 Protamine sulfate is antidote of heparin overdose whereas vitamin K is used as antidote for warfarin toxicity