It should contain Drugs used Dose Dosing schedule Prescriber Reason for prescribing the drugs Precise nature of any drug allergies All drugs and substances used should be recorded, including Topical drugs (which may be absorbed systemically) Over-the-counter drugs (which can have serious consequences if overused and may interact with prescription drugs) Dietary supplements Medicinal herb preparations (because many can interact adversely with prescription and over-the-counter drugs) Alcohol Caffeine Other recreational drugs (eg, marijuana) Patients or family members should be asked to bring in all of the above drugs and supplements at the initial visit and periodically thereafter.