Sulfamethoxazole/Trimethoprim Drug Interactions Important for EM Clinicians

Today’s pearl highlights two interactions that are important for Emergency Medicine clinicians to know.

What are the risks? How common are they?
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Antibiotic Effects on Oral Contraceptives

Today’s pearl addresses a misconception regarding a drug interaction between oral contraceptives and antibiotics.

Are back-up methods of contraception required? Does this apply to all antibiotics?
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