Pharmacology Which of the following drugs should not be administered concomitantly with warfarin as it decreases the effect of oral anticoagulants A Broad spectrum antibiotic B Cimetidine C Aspirin D Oral contraceptive 💡 Explanation Which of the following drugs should not be administered concomitantly with warfarin as it decreases the effect of oral anticoagulants ✓ Correct Answer: D. Oral contraceptive