The US Food and Drug Administration (FDA) sounded an alert about medication errors involving 2 drugs with similar names and labels: risperidone, an antipsychotic drug, and ropinirole, a dopamine agonist used to treat Parkinson disease and restless legs syndrome (http://tinyurl.com/3tlz43j).
The FDA evaluated 226 wrong drug medication errors reported to the agency's Adverse Event Reporting System database and the Institute for Safe Medication Practices involving confusion between risperidone and ropinirole. Sixteen cases resulted in adverse events; 5 of these led to hospitalizations.
Hampton T. Drug Name Confusion. JAMA. 2011;306(4):366. doi:10.1001/jama.2011.1012