National Dental Examining Board of Canada (NDEB) Practice Exam

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Master your National Dental Examining Board of Canada (NDEB) exams with our comprehensive practice guide. Achieve excellence in your dental certification with expertly crafted questions and detailed explanations.

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Which medication should not be prescribed for a patient on warfarin?

Paracetamol
Acetylsalicyclic acid
Codeine
Amoxicillin

The correct answer is: Acetylsalicyclic acid

Warfarin is a blood-thinning medication commonly used to prevent blood clots and strokes. Acetylsalicyclic acid (also known as aspirin) has also been proven to have a similar blood-thinning effect. If both medications are taken together, it can increase the risk of bleeding and bruising in the patient. Therefore, it is recommended that patients on warfarin avoid taking aspirin or any other blood-thinning medications. Paracetamol, codeine, and amoxicillin do not have a significant interaction with warfarin and can be safely prescribed to patients on this medication.