Hydrochlorothiazide 12.5 mg Tablets — Generic For Microzide — Avet

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 tablets are a diuretic and antihypertensive medicine. The label says they are used as add-on therapy for edema linked to congestive heart failure, hepatic cirrhosis, corticosteroid and estrogen therapy, and certain kidney disorders.

They are also used to manage high blood pressure, either alone or with other blood pressure medicines. The label notes that the drug increases the excretion of sodium and chloride and that urination usually begins within 2 hours after taking a dose.

Important safety information includes that this medicine should not be used in people with anuria or in people who are hypersensitive to hydrochlorothiazide or other sulfonamide-derived drugs. The label also warns about possible fluid and electrolyte imbalances, low potassium, and other serious side effects.

The label advises patients to protect their skin from the sun and get regular skin cancer screening while taking hydrochlorothiazide.

Storage Information

Store at 20° to 25°C (68° to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature].

Key Counseling Points

• Take hydrochlorothiazide exactly as prescribed; the label says therapy should be individualized and the smallest effective dose should be used.
• This medicine can cause increased urination; the label says this effect usually starts within 2 hours after an oral dose.
• Tell a healthcare professional about any signs of fluid or electrolyte imbalance, such as thirst, weakness, confusion, muscle cramps, drowsiness, or nausea and vomiting.
• The label warns that low potassium can occur and may affect the heart; electrolyte monitoring may be needed.
• Hydrochlorothiazide may cause dizziness or low blood pressure, especially when combined with alcohol, barbiturates, narcotics, or other antihypertensive drugs.
• The label says to protect skin from the sun and undergo regular skin cancer screening.
• Seek prompt attention for sudden decreased vision or eye pain, which the label describes as possible signs of acute myopia or angle-closure glaucoma.
• Tell a healthcare professional if you have kidney disease, liver disease, diabetes, gout, or a sulfonamide allergy, since the label includes related warnings and precautions.
• The label notes that this medicine may interact with lithium, nonsteroidal anti-inflammatory drugs, cholestyramine or colestipol resins, and some diabetes medicines.

Helpful Patient Education

Hydrochlorothiazide tablets are a thiazide diuretic and antihypertensive medicine used for edema and for management of hypertension. According to the DailyMed label, the tablets are available in 12.5 mg, 25 mg, and 50 mg strengths, and the product includes important warnings about fluid and electrolyte balance, kidney and liver disease, and potential drug interactions.

This pharmacy product information is intended to provide label-based education about hydrochlorothiazide, including uses, precautions, adverse reactions, and storage. Patients should review the full prescribing information and speak with a healthcare professional about any questions related to this medicine.

Medication Summary last generated: 2026-07-18 02:51:30