Definition Any preventable event that may cause harm to the patient or lead to inappropriate medication use while the medication is under control of the healthcare professional, patient, or consumer. The most common causes of medication errors are: Prescriptions that are not understandable Selection of incorrect medication Incorrect diagnosis Incorrect doses Miscalculated doses Incorrect administration method Samples provided by physicians How to report medication errors The tool provided by the FDA to report these medication errors is known as MedWatch. The MedWatch program is used to report safety information and adverse effects. You may voluntarily report serious adverse effects, problems with product quality, and therapeutic equivalence failure of products regulated by the FDA. To get more information or report a medication error you may access https://www.accessdata.fda.gov/scripts/medwatch or you can complete our medication error report sheet and email it to moc.e1685599878gatna1685599878vdass1685599878s@mar1685599878gorpr1685599878ud1685599878. You may also print it and send it via fax to 787-522-4005.