Hydrochlorothiazide
Also sold as: Esidrex
Prescription neededWater pills (diuretics)
Comes as:Tablet
Usual adult dose
Usual adult dose: 12.5 to 25 mg once a day in the morning (up to 50 mg).
Your doctor may give you a different dose. Children's doses depend on weight.
Side effects
Common
- passing more urine
- dizziness
- thirst
- muscle cramps
Serious — get help
Stop taking it and see a doctor straight away if you notice:
- very low sodium or potassium (confusion
- severe weakness
- irregular heartbeat)
- gout attack
- severe skin rash
- sudden eye pain or blurred vision
Do not take it, or take care, if
- Severe kidney or liver disease
- Low potassium or sodium
- Gout (use with caution)
- Diabetes (can raise blood sugar; use with caution)
Interactions
Medicines that can react with this one.
Serious1 medicineDo not take these together unless your doctor says so.
- Lithium carbonate
Thiazide diuretics raise lithium levels and the risk of toxicity.