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Sodium chloride preparations

Lubricant
Other names: Ayr, Muro, Nebusal

FAA guidance

Acceptable in the FAA document cited.

Source: FAA, MedGuide (FAA Office of Aerospace Medicine medication reference). FAA date 1 October 2026. Checked by Crosscheck 14 October 2026

The FAA's MedGuide lists sodium chloride preparations (Ayr, Muro, Nebusal) as allowed, for dry eye disease or restores moisture, with no wait after the first dose, after later doses or after the final dose, used per label directions.

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More detail: sodium chloride preparationsThe rest of Crosscheck's reading, in plain wordsOpen

The MedGuide defines allowed as acceptable for use while performing flight or safety-related duties, provided the condition is stable/aeromedically acceptable and no adverse side effects are present, and says wait times are not determined solely by the medication: an extended observation period may be required to verify clinical stability of the condition.

Show the FAA's words: sodium chloride preparationsThe official FAA wording: three passages, each with its document and dateOpen
FAA, MedGuide (FAA Office of Aerospace Medicine medication reference) · FAA date 1 October 2026
Generic: sodium chloride preparations
Brand Name: Ayr; Muro; Nebusal
Drug Class: Lubricant
Underlying Condition: Dry eye disease; Restores moisture
Use: ALLOW
INITIAL Wait Time (after first dose): None
SUBSEQUENT Dose Wait Time (after each dose): None
DISCONTINUATION Wait Time (after final dose): None
Frequency Use Limit: Per label directions
FAA, MedGuide (FAA Office of Aerospace Medicine medication reference) · FAA date 1 October 2026
ALLOWED: The medication is acceptable for use while performing flight or safety-related duties, provided the condition is stable/aeromedically acceptable and no adverse side effects are present.
FAA, MedGuide (FAA Office of Aerospace Medicine medication reference) · FAA date 1 October 2026
Underlying Condition: Evaluating medication use requires considering the impact of safety of flight from both the medication and underlying condition. Wait times are not determined solely by the medication; an extended observation period may be required to verify clinical stability of the condition.
Sources and dates: sodium chloride preparationsOne FAA document, with the FAA's date and when Crosscheck checked itOpen

See also

Medication guidance alone does not determine whether a pilot is medically qualified to fly. The underlying condition, dosage, side effects, medication combinations, and certification history may affect FAA eligibility.

For informational purposes only. Not legal or medical advice.