Prolonged hypotension induced by ingesting a topical minoxidil solution: analysis of minoxidil and its metabolites

Abstract

Although the serum concentration of unchanged minoxidil rapidly decreased, ingesting large amounts of a topical minoxidil solution can have serious and prolonged cardiovascular effects. Analyzing the minoxidil-<i>O</i>-glucuronide concentration in urine is useful for diagnosing minoxidil poisoning.