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SACAA Part 67 medication guidance · unofficial

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Hydrochlorothiazide

Part of group: Thiazide diuretic

SACAA Part 67 assessment

Generally acceptable for flying

Active ingredient(s)

2 in group
HydrochlorothiazideIndapamide

Thiazide diuretic

Stabilisation period

At least 4 weeks stable, with electrolytes checked before return to duty.

Guidance notes

Low-dose diuretics are acceptable (Table A1): hydrochlorothiazide below 25 mg/day, furosemide up to 40 mg/day with potassium supplementation. High-dose kaliuretic diuretics (above 25 mg HCTZ equivalent) and acetazolamide are unacceptable. Consider dehydration and urinary frequency on long sectors.

Known SA brand names

RidaqNatrilixLasix (furosemide)DyazideAldactoneHydrochlorothiazideFurosemideAmilorideSpironolactone

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SACAA Aviation Medicine (official reference)