About magnesium hydroxide
Antacid and osmotic laxative
Used for
- Relief of heartburn, acid indigestion, and upset stomach
- Short-term relief of occasional constipation
Usual adult dose
For indigestion: chew 1–2 tablets as needed, up to four times daily. For constipation: 30–60 mL oral liquid once daily.
Usual dose in children
For indigestion, children 12 years and older: chew 1–2 tablets as needed, up to four times daily. Constipation dosing depends on age and product; pediatric guidance is needed.
Common side effects
- Diarrhea or loose stools
- Abdominal cramps
- Nausea
- High magnesium levels, especially with kidney disease
Important warnings
- Avoid or seek medical guidance with kidney disease.
- Do not use for constipation longer than one week without medical advice.
- Separate from other medicines by at least two hours; some need longer.
- Check the package directions; chewable products may contain additional ingredients.
Pregnancy
Occasional use is generally considered low risk, but repeated or high doses should be medically reviewed.
Breastfeeding
Generally compatible with breastfeeding at recommended doses; avoid excessive or prolonged use.
Interactions
- May reduce absorption of tetracycline or quinolone antibiotics, iron, and bisphosphonates.
- Can interfere with levothyroxine absorption; separate doses.
- May increase magnesium levels with magnesium-containing medicines or supplements.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.