For medications available in both prescription and non-prescription strength, how can the prescription strength be determined ?
Answer Prescription strength is measure by how much of the therapeutic agent is to be taken at one time in a single dose. Information on prescription-strength dosages may be obtained from: • United States Food and Drug Administration • Pharmacists, Physicians • Other licensed health care professionals Single dosages considered prescription strength for some over-the -counter drugs include: • Ibuprofen (e.g. Advil) – greater than 467 mg • Naproxen Sodium (e.g. Aleve) greater than 220 mg • Diphenhydramine (e.g. Benadryl) – greater than 50 mg • Ketoprofen (e.g.