Clonidine 0.3 mg Immediate Release Tablets — Generic For Catapres — 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

Clonidine hydrochloride tablets are a prescription medicine used to treat hypertension (high blood pressure). The tablets may be used alone or with other antihypertensive medicines.

The label says clonidine acts in the brain to reduce nerve signals that raise blood pressure. It can begin lowering blood pressure within 30 to 60 minutes after an oral dose, with the largest effect in 2 to 4 hours.

Do not stop clonidine suddenly without medical advice. The label warns that abrupt stopping can cause nervousness, agitation, headache, tremor, and a rapid rise in blood pressure, and rare serious outcomes have been reported.

Common side effects listed include dry mouth, drowsiness, dizziness, constipation, and sedation. The label also notes caution with alcohol and other sedating drugs, and warns that clonidine may cause dizziness or blurred vision.

Storage Information

Store at 20oto 25oC (68o to 77oF) [see USP Controlled Room Temperature].

Key Counseling Points

• Take clonidine exactly as prescribed and do not stop it suddenly.
• Ask a healthcare professional before making any change in therapy.
• This medicine may cause drowsiness, dizziness, or blurred vision.
• Be cautious when driving or using machinery until you know how clonidine affects you.
• Alcohol, barbiturates, and other sedating drugs may increase the sedative effect.
• Dry mouth is common; constipation may also occur.
• If you wear contact lenses, the label says clonidine may cause dry eyes.
• Tell a healthcare professional about other medicines, especially beta-blockers, tricyclic antidepressants, digoxin, calcium channel blockers, or other drugs that affect heart rate.
• The label advises gradual dose reduction if clonidine is being discontinued.
• Seek urgent help for signs of overdose such as severe drowsiness, slow heart rate, trouble breathing, or loss of consciousness.

Helpful Patient Education

Clonidine hydrochloride tablets are an oral prescription medicine used for the treatment of hypertension. According to the label, clonidine lowers blood pressure by reducing sympathetic nerve output from the central nervous system, and it may be used by itself or with other antihypertensive agents.

This product information includes important safety points such as the risk of withdrawal symptoms if clonidine is stopped suddenly, as well as common adverse effects like dry mouth, drowsiness, dizziness, constipation, and sedation. The label also notes caution with alcohol and other sedating medicines and advises monitoring for interactions with other blood pressure or heart-rate–affecting drugs.

Medication Summary last generated: 2026-07-05 12:24:55