As a general rule, the formulas are compatible with prescription medication. The formula offered on this site do not create side-effects or reduce the effectiveness of any medication being taken. Typically any issues that have been reported have been successfully solved by following the advice in FAQ “Do the formulas have side-effects.” Please note that there will always unpredictable exceptions. It is important you monitor any undesired feelings in your body. If you are taking any medication or supplement, from your doctor or other therapist and begin feeling off, unwell or know that something is not right, contact your prescribing practitioner immediately. In the event of a severe adverse reaction, cease the medication immediately and visit your local hospital.