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A new study finds that nearly 20% of patients treated for dental infections in urgent care, EDs, and primary care settings receive clindamycin — an antibiotic with a black-box FDA warning linked to life-threatening C. difficile infections. Penicillin-class antibiotics are safer, more effective, and ADA-recommended, yet clindamycin remains widely prescribed, often unnecessarily. Experts say better allergy screening and provider education could fix the problem.
When dental pain sends people to urgent care or the ER, they often leave with an antibiotic prescription — but a new study published in Open Forum Infectious Diseases reveals that too many are getting the wrong one. Researchers analyzed over 12,000 patients across Michigan's Trinity Health Network and found that nearly 20% received clindamycin, an antibiotic that carries the FDA's strongest "black box" warning due to its risk of triggering life-threatening Clostridioides difficile (C. diff) infections. The American Dental Association (ADA) recommends penicillin-class antibiotics as the safer, more effective first-line choice.
One major driver of clindamycin prescribing is perceived penicillin allergy — but the data tell a different story. Among patients who received a non-penicillin antibiotic, 21% had no documented allergy at all, and 27% had only a mild intolerance. Experts suggest a simple four-question screening tool can quickly identify patients who are actually safe to receive penicillin.
By the Numbers:
Why it matters: Overprescribing clindamycin isn't just a missed opportunity — it puts patients at serious risk and contributes to antibiotic resistance. With better allergy screening and clearer provider education on ADA guidelines, clinicians can make safer prescribing decisions for the nearly 2 million dental pain cases treated outside dentist offices each year in the U.S.
