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Promethazine

Part of group: First-generation (sedating) antihistamine

SACAA Part 67 assessment

Not acceptable / incompatible with flying duties

Active ingredient(s)

3 in group
PromethazineChlorphenamineDiphenhydramine

First-generation (sedating) antihistamine

Typical grounding period: 48 hours (2 days)

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

Guidance notes

Markedly sedating with long-lasting subtle performance impairment. Not acceptable for flying. If taken, remain grounded at least 24–48 hours after the last dose.

Known SA brand names

AllergexPhenerganBenadrylLennon Anti-HistaminePolaramine

Our DAME partners

SACAA certified DAME list

Possible acceptable alternatives (same therapeutic group)

Alternatives are informational only. The underlying medical condition must also be assessed by a DAME — a condition can ground you even when the medicine is acceptable.

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SACAA Aviation Medicine (official reference)