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SACAA Part 67 medication guidance · unofficial

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Diazepam

Part of group: Benzodiazepine / anxiolytic

SACAA Part 67 assessment

Not acceptable / incompatible with flying duties

Alcohol plus a sedating medicine — additive effect

Alcohol multiplies the sedation and reaction-time impairment of this medicine. The two clocks run separately: the 8-hour alcohol restriction (and the 0.02 g/100 ml limit) and the medicine's own washout period — you are only clear once the later of the two has passed and you are completely side-effect free.

Contains alcohol or may contain alcohol

No aviation duty within 8 hours of any alcohol — and never above 0.02 g/100 ml blood alcohol concentration.

Many liquid medicines (cough mixtures, elixirs, tinctures, tonics, some drops and mouthwashes) contain ethanol as a solvent, and the label may only say 'ethanol', 'alcohol' or 'spiritus'. No aviation duty within 8 hours of consuming any alcohol, and never with a blood alcohol concentration of 0.02 g/100 ml or higher (CAR 91.02.3 / Part 67). Alcohol also multiplies the sedating effect of antihistamines, benzodiazepines, opioids and Z-drugs. Choose an alcohol-free preparation whenever one exists, and check the label of every liquid medicine before duty.

Active ingredient(s)

4 in group
DiazepamAlprazolamLorazepamClonazepam

Benzodiazepine / anxiolytic

Typical grounding period: 72 hours (3 days)

Measured from the last dose, and only once completely side-effect free.

Guidance notes

Table A1: benzodiazepines are unacceptable — no flying within 72 hours. The drug is addictive and must not be used together with alcohol. Long half-life agents and the underlying anxiety disorder may require considerably longer grounding, decided by the DAME.

Category rules that also apply

Controlled / narcotic substance — absolute prohibition

Narcotics, opioids, sedatives of dependence and stimulants of abuse (Schedule 5 and 6 medicines, and all illicit substances) are incompatible with aviation duty. No flying, air traffic control or cabin crew duty while the substance is being used, and return to duty requires formal DAME assessment of the medicine, the underlying condition and any dependence risk — not simply a washout period. These substances also trigger positive results on SACAA and operator substance screening, which carries licensing consequences separate from the medical assessment. Never combine them with alcohol.

Known SA brand names

ValiumPaxXanorAtivanRivotrilUrbanol (clobazam)

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SACAA Aviation Medicine (official reference)