Included with every medication is a patient information sheet that outlines the proper usage, as well as possible drug interactions, and side effects. Please note that since some medications can interact negatively with other prescriptions or over-the-counter (OTC) medications, it is very important that you let your prescriber and in-office dispensary pharmacist know about any other medicines, herbal supplements, or dietary supplements that you are taking. If you experience any of the listed side effects, or believe you may be having an adverse reaction to a medication, call 911. In addition, be sure to alert your prescriber and in-office dispensary.