National Dental Examining Board of Canada (NDEB) Practice Exam

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Prepare for the National Dental Examining Board of Canada (NDEB) Exam. Gain confidence with our comprehensive quizzes that include detailed explanations and hints to help you understand key concepts. Excel in your dental career!

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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.