Steven Feldman, MD, PhD, is a professor of pathology and dermatology at Wake Forest University Baptist Medical Center in Winston-Salem, N.C.
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IstockphotoQ: Can certain medications make psoriasis worse?

A: A number of medications can make psoriasis worse. The blood pressure medicine propranolol (and related beta-blockers) and a medication used to treat bipolar disorder, lithium, are two medications most closely associated with worsening psoriasis. Other medications include hydroxychloroquine (an anti-malarial drug), indomethacin (a pain medication), and interferon.