Question: What is "off-label" use of drugs and is it legal?
I always encourage everyone to do some research on all the drugs that they are taking to make sure that there are no interactions with other drugs you might be on, no contraindications to taking them that may apply to you, and what type of side effects to anticipate. People who look up their drugs on MedlinePlus.gov
or other sites may be surprised to find that the symptom that the medication that has been prescribed to help is not listed anywhere on the drug's description, leading them to wonder if their doc is confused or a mistake has been made. Nope, your doc has decided to use a drug "off-label."
Off-label use of drugs means that the medication is prescribed for a use other than it was approved for by the Food and Drug Administration (FDA). Drugs approved for use in the United States must go through rigorous testing in the form of clinical trials
in order for it to be legal for physicians to prescribe them. Clinical trials test drugs against certain symptoms or illnesses, usually in certain age groups, and FDA approval is for these specific problems in this age group.
Once drugs are approved by the FDA, they can be legally prescribed for any reason and to any person. It is up to the doctor to use their professional experience and knowledge, when deciding which drugs to use in patients.
While it is legal to prescribe drugs off-label, it is illegal to advertise them for uses other than those for which the received FDA approval.
Many drugs used to manage the symptoms of multiple sclerosis (MS) are used off-label. Some of these include:
- Tricyclic antidepressants, such as nortriptyline (Pamelor) and amitriptyline (Elavil) to treat neuropathic pain (labeled as antidepressants)
- Modanifil (Provigil) to treat MS-related fatigue (labeled as a drug to treat narcolepsy or to help shift workers adjust to their schedules)
- Carbamazepine (Tegretol, Carbatrol) to treat trigeminal neuralgia and bladder dysfunction (labeled as an anticonvulsant drug)
- Isoniazid (Nydrazid) to treat intention tremor in MS (labeled as an antibiotic used to treat tuberculosis)
- Ondansetron (Zofran) also to treat intention tremor (labeled as an antinausea drug)