Hydrochlorothiazide Dosage Guide in Pakistan

Taking the correct dose of Hydrochlorothiazide is very important for treatment success and avoiding side effects. This guide provides complete information on adult dose, child dose, timing, and missed dose. Always confirm the dose with your doctor.

Compiled by the PakVita Editorial Team · AI-assisted drafting with editorial review · Sourced from DRAP, WHO, BNF · Last updated: 2026-06-17

Dosage Guide

Quick Answer

The standard dose of Hydrochlorothiazide is as prescribed by your doctor. Common adult doses range from 12.5 mg to 50 mg once daily, depending on the condition being treated. Children should take weight-based doses as advised by a doctor. Never exceed the maximum recommended daily dose. Always take it in the morning to avoid nighttime urination.

Dose at a Glance

Adult Dose

As prescribed by your doctor (commonly 12.5 mg to 50 mg once daily)

Once daily — morning preferred

Max: Do not exceed the prescribed daily limit

Child Dose (As per doctor's advice)

Weight-based dose — consult your doctor

As directed by your doctor

Missed Dose

If you miss a dose, take it as soon as you remember. If the next dose is close, skip the missed dose. Never take a double dose.

Overdose

In case of overdose, contact a doctor or emergency room immediately. Hydrochlorothiazide overdose can cause severe dehydration, electrolyte imbalance, and a serious drop in blood pressure.

Hydrochlorothiazide Dosage (Kitni leni hai)

Hydrochlorothiazide correct dosing is necessary for treatment success. Always confirm the dose with your doctor or pharmacist.

Adult Dose (Baalgon ke liye)

As prescribed by doctor
Morning once daily (morning preferred)
Do not take a higher dose without doctor's guidance

Starting Dose: As prescribed by your doctor

Usual Dose: As prescribed by your doctor (commonly 12.5–25 mg for hypertension)

Max Daily Dose: Do not exceed the prescribed daily limit

Child Dose (Bachon ke liye)

Weight-based dose — consult your doctor

A child's dose is always decided by the doctor based on weight and age. Do not calculate the dose yourself.

How to Take (Kaise leni hai)

Once daily
Take with water
With or without food — both are acceptable

Best Time to Take (Kab leni chahiye)

Morning — strongly recommended so that repeated nighttime urination does not disturb sleep
Take it at the same time every day

With Food or Empty Stomach (Khali pait ya khane ke baad)

Can be taken either way. If there is stomach discomfort, taking it after food is better.

Missed Dose (Dose chhoot jaye to kya karein)

If you miss a dose, take it as soon as you remember. If the next dose time is close, skip it. Never take a double dose.

Overdose (Zyada Dose)

If an excessive dose is taken, contact the nearest hospital or doctor immediately. Overdose can cause severe dehydration, electrolyte imbalance, and a serious drop in BP.

Dose Summary Table

Patient	Dose	Notes
Adult	As prescribed by your doctor	Morning — once daily
Child	Weight-based dose — consult doctor	Age/weight-based

The information in this guide is for educational purposes only. Always confirm the dose with your doctor or pharmacist.

Frequently Asked Questions

Hydrochlorothiazide ki standard adult dose kitni hai?

The standard adult dose is as directed by the doctor. According to the BNF, 12.5 mg to 25 mg once daily is commonly used for hypertension; 25 mg to 50 mg may be given for oedema. Do not change the dose yourself.

Hydrochlorothiazide kab leni chahiye — subah ya raat ko?

Morning is better. Being a diuretic, it causes increased urination — taking it at night will disturb sleep. Fix the timing as directed by your doctor.

Agar dose chhoot jaye to kya karein?

Take it as soon as you remember. But if the next dose time is close, skip the missed dose and take the next dose on time. Never take a double dose.

Hydrochlorothiazide zyada le li jaye to kya hoga?

Overdose can cause severe dehydration, excessive urination, electrolyte imbalance, and a serious drop in blood pressure. Contact the nearest hospital or doctor immediately.

Hydrochlorothiazide kitni der tak leni chahiye?

For hypertension, it is often used long-term until the doctor stops it. Do not discontinue the course yourself — there is a risk of BP rising again. The doctor will call for regular check-ups.

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Sources

DRAP Registered Products Database — Drug Regulatory Authority of Pakistan
WHO Model List of Essential Medicines, 23rd ed. (2023) — World Health Organization
British National Formulary (BNF) — BMJ Group & Pharmaceutical Press

Medical disclaimer

This page is for educational use only and does not replace professional medical advice. Always confirm diagnosis, dose, and interactions with a qualified doctor or pharmacist before starting or changing any medicine.