Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 8/31/2025

Minoxidil Oral 5mg Side Effects

Introduction to Minoxidil Side Effects

  • The American College of Cardiology recommends that minoxidil oral 5mg be used with caution due to its significant side effects, including hirsutism, sodium and water retention, and the need for concomitant use of diuretics and beta-blockers to control adverse cardiovascular effects 1, 2, 3

Principais Efeitos Colaterais

Efeitos Cardiovasculares

  • The American College of Cardiology states that sodium and water retention (edema) requires concomitant use of loop diuretics 1, 3
  • Reflex tachycardia requires concomitant use of beta-blockers 2, 4
  • Pericardial effusion is a rare but possible side effect 2, 3

Efeitos Dermatológicos

  • Hirsutism (excessive body hair growth) occurs in up to 93% of patients, according to the American College of Cardiology 2

Outros Efeitos

  • The American College of Cardiology notes that central nervous system side effects are less common with minoxidil than with other central anti-hypertensives 3

Considerações Importantes para Uso

Precauções

  • The American College of Cardiology recommends avoiding abrupt interruption of treatment, especially when used with beta-blockers 1
  • Minoxidil should be administered in combination with diuretics and beta-blockers to control adverse effects of fluid retention and tachycardia 1, 2, 3
  • The dose for hypertension ranges from 5-100mg/day, usually divided into 1-3 doses, as recommended by the American College of Cardiology 1, 3