Related Experiment Video
Updated: Apr 20, 2026

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis
Published on: March 9, 2015
Minoxidil topical solution: an unsafe product for children
Isabelle Claudet1, Caroline Cortey, Raphaele Honorat
1From the *Pediatric Emergency Department, Children University Hospital and †Regional Poison Center, Purpan University Hospital, Toulouse, France.
Accidental ingestion of topical minoxidil by a child caused severe intoxication, including prolonged hypotension and ECG changes. This highlights the risks of minoxidil hair solution in pediatric cases.
Area of Science:
- Toxicology
- Pediatric Emergency Medicine
Background:
- Minoxidil hair formulations are widely used for androgenic alopecia.
- The over-the-counter availability of minoxidil contributes to a perception of safety, even for pediatric use.
Observation:
- A 7-year-old girl experienced significant intoxication after ingesting a teaspoon of topical minoxidil.
- She presented with emesis, severe hypotension (lasting 40 hours), and sinus tachycardia with T-wave flattening on ECG.
Findings:
- The child's hypotension was profound and prolonged, with the lowest blood pressure recorded 24 hours post-ingestion.
- Standard fluid resuscitation had no immediate hemodynamic effect, indicating the severity of the minoxidil toxicity.
- Cardiac enzymes remained normal, but ECG changes suggested myocardial effects.
Implications:
- Topical minoxidil solutions pose a significant risk of severe intoxication in children.
- Enhanced child-resistant packaging and stricter controls on over-the-counter sales are crucial.
- Pediatricians and emergency departments must be aware of minoxidil toxicity symptoms.
Related Concept Videos
Pharmacokinetics in Pediatric Patients: Drug Excretion
Drug Dosing: Infants and Children
Antihypertensive Drugs: Vasodilators
Pharmacokinetics in Pediatric Patients: Drug Metabolism
Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics
Antitussives include codeine, dextromethorphan (Robitussin), and benzonatate (Tessalon). Codeine and dextromethorphan exert their effects centrally by suppressing the cough reflex center in the medulla. Benzonatate operates peripherally within the respiratory tract by...
Pharmacokinetics in Pediatric Patients: Drug Distribution

