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The Federal Aviation Regulations include no specific references to medication usage. FAR 61.53 prohibits acting as pilot-in-command or in any other capacity as a required pilot flight crewmember, while that person:
Further, FAR 91.17 prohibits the use of "any drug that affects the persons faculties in any way contrary to safety."
In 1994 an important court case, Bullwinkel v. FAA & NTSB, challenged the FAA's policy authority to disqualify medications in the absence of a disqualifying medical condition. As a result of that decision, an emergency rule was invoked giving the Federal Air Surgeon authority to deny any "medications or other treatment that (a) makes the applicant unable to safely perform the duties or exercise the privileges of the airman certificate that the applicant holds or for which the applicant is applying; or (b) may reasonably be expected, within 2 years after the finding, to make the applicant unable to safely perform those duties or exercise those privileges."
The FAA generally disallows certain types of drugs that are continuously used for treatment. These include, but aren't limited to, antiviral agents, anxiolytics (anti-anxiety), barbiturates, chemotherapeutic agents, experimental, hypoglycemic, investigational, mood altering, motion sickness, narcotic, sedating, antihistaminic, steroids, or tranquilizers.
However, there is no official FAA "list" of drugs that are allowed for aviation use, so there is no requirement that medications being taken be made known to the FAA prior to completing an FAA airman medical application. There are several thousand medications currently approved by the U.S. Food and Drug Administration, not including OTC (over the counter) drugs.
Virtually all drugs have the potential for adverse side effects in some people. While some individuals experience no side effects with a particular drug, others may be noticeably affected. Since each person's response is different, the FAA has to consider the worst possible reaction to a drug in evaluating the decision to allow flight duties.
Drugs that cause no apparent side effects on the ground can create serious problems at even relatively low altitudes. Even at typical general aviation altitudes, the changes in concentrations of atmospheric gases in the blood can enhance the effects of seemingly innocuous drugs and result in impaired judgment, decision-making, and performance. Another important consideration is the condition for which a medication is prescribed that may, itself, be disqualifying. Medications are prescribed to treat a medical condition and the condition itself may be considered disqualifying with or without medication usage.
Some of the most commonly used OTC drugs, antihistamines and decongestants, have the potential to cause some of the most noticeable adverse side effects, most notably sedation and drowsiness. The symptoms associated with common upper respiratory infections, even a bad cold, will usually suppress a pilot's desire to fly, and treating symptoms with a drug that causes side effects only compounds the problem. Allegra (fexofenadine), Claritin (loratidine) and Hismanol (astemizole) are noted to be non-sedating and are allowed by the FAA, even though you still might not be legal under FAR 61.53. Remember, a bad head cold may be a "medical deficiency" under the regulations.
For other pulmonary conditions such as asthma, the FAA approves the use of some inhalers, such as Proventil, Azmacort, Spiriva, or Symbicort on a case-by-case basis, based on a review of the history of symptoms.
Many antihypertensive and cardiac drugs may also be allowed, case-by-case. For blood pressure control, five categories of medications are acceptable: angiotensin converting enzyme inhibitors (ACE) inhibitors, beta adrenergic blocking agents, calcium channel blockers, alpha-adrenergic blocking agents, and diuretics encompass about 60 different acceptable medications. Other cardiac drugs, such as antiarrhythmics, may also be approved, based on the condition for which the medications are prescribed. Agents used to control angina (chest pain) called nitrates, including nitroglycerine, are not permitted.
Any drug that produces drowsiness or other central nervous system effects and experimental or investigational drugs are prohibited. These medications include narcotic analgesics, stimulants, sedatives, hypnotics, amphetamines, barbiturates, anti-anxiety drugs, muscle relaxants, tranquilizers, and antipsychotics (neuroleptics). Among the drugs classified as stimulants is Ritalin, Strattera, and Concerta, all of which are used to treat attention deficit disorder (ADD); however, the FAA does not currently allow any of these medications for any condition.
Among the antidepressants, the FAA now considers Fluoxetine (Prozac), Sertraline (Zoloft), Citalopram (Celexa) and Escitalopram (Lexapro) under a policy adopted in April 2010. All other antidepressants are currently disqualifying, regardless of the reason for their use. These medications are often prescribed for "off label" use, that is, they are treating symptoms other than those for which the Food and Drug Administration approved the medication. Again, the underlying symptoms and diagnosis may be disqualifying, and the use of an antidepressant medication compounds the situation.
Anticonvulsants are disqualifying because of the specific medical history that may include a prior seizure, seizure-like event, or risk of seizure. Although these drugs minimize the possibility of a seizure recurrence, their usage does not absolutely preclude an event.
The FAA guideline for use of an otherwise unacceptable medication is to observe the dosing interval and wait five times that interval after the last dose before flying. For example, if the prescription reads, "Take every four hours for pain," wait 20 hours after the last dose before flying. This allows adequate time for any side effects to have subsided.
If you have any questions about medication usage, you can also view a list of medications online. If you need additional information, call the Pilot Information Center and speak with a medical certification specialist at 800/872-2672.
Updated August, 2010
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