We outline some of the causes of medication errors involving women and recommend ways that healthcare practitioners can prevent some of these errors. Patient safety has become a major concern since the November 1999 release of the Institute of Medicine (IOM) report, "To Err Is Human." Errors involving prescription medications are responsible for up to 7000 American deaths per year, and the financial costs of drug-related morbidity and mortality may be nearly $77 billion a year. The Institute for Safe Medication Practices (ISMP) collects and analyzes voluntary confidential medication error reports and makes recommendations on the prevention of such errors. This paper uses the expertise of ISMP in medication error prevention to make recommendations to prevent medication errors involving women. Healthcare practitioners should focus on areas of the medication use process that would have the greatest impact, including obtaining complete patient information, accurately communicating drug information, and properly educating patients. Although medication errors are not more common in women, there are some unique concerns with medications used for treating women. In addition, sharing of information about medication use and compliance with medication regimens have been identified as concerns. Through the sharing of information and improving the patient education process, healthcare practitioners should play a more active role in medication error reduction activities by working together toward the goal of improving medication safety and encouraging women to become active in their own care.