Hydrochlorothiazide 12.5 mg Capsules — Generic For Microzide — Unichem

Medication Summary

Medication Summary: This section summarizes DailyMed drug label information to make the label easier to understand. It is not a substitute for the official label, pharmacist counseling, prescriber instructions, or medical advice.

Overview

Hydrochlorothiazide capsules USP, 12.5 mg, are an oral thiazide diuretic. They are indicated for the management of hypertension, either by themselves or in combination with other antihypertensive medicines.

The label explains that hydrochlorothiazide works by reducing sodium and chloride reabsorption, which increases the amount of water excreted. Its blood-pressure effects are not fully understood, but the medicine has been shown to lower blood pressure in clinical studies.

This product should not be used in patients with anuria or in people who are hypersensitive to this product or other sulfonamide-derived drugs. The label also warns about possible eye problems, electrolyte changes, kidney issues, and other adverse effects.

Storage Information

Store at 200 to 250C (680 to 770F) [see USP Controlled Room Temperature]. Protect from light, moisture, freezing, -200C (-40F).

Key Counseling Points

• Take hydrochlorothiazide exactly as directed on the prescription label.
• This medicine is used to help manage high blood pressure.
• The label says the usual adult initial dose is one capsule once daily.
• Do not use more than 50 mg total per day unless your prescriber instructs otherwise; doses above this are not recommended in the label.
• Be aware that this medicine can cause fluid and electrolyte disturbances, including low potassium or low sodium.
• Report symptoms listed in the label such as dry mouth, thirst, weakness, drowsiness, muscle cramps, nausea, vomiting, or dizziness.
• The label warns about acute myopia and secondary angle-closure glaucoma; report sudden decreased vision or eye pain right away.
• People taking hydrochlorothiazide should protect their skin from the sun and get regular skin cancer screening.
• Tell your healthcare professional about other medicines you take, since several drug interactions are listed in the label.
• The label states that safety and effectiveness in pediatric patients have not been established.

Helpful Patient Education

Hydrochlorothiazide capsules USP 12.5 mg are a prescription thiazide diuretic used for the management of hypertension. The DailyMed label describes oral use and notes that the medicine may be used alone or with other antihypertensive drugs.

This educational product page summary is based on label information about dosage, precautions, warnings, adverse reactions, and storage. It is intended to support pharmacy education and should not replace the full prescribing information.

Medication Summary last generated: 2026-07-11 02:52:00