Common Use

Zestril is classified as an ACE inhibitor. It works by blocking the conversion of angiotensin I to angiotensin II, reducing arteriolar resistance, increasing venous capacity, enhancing cardiac output, and lowering renovascular resistance. It is commonly prescribed to treat congestive heart failure, hypertension, and to improve survival rates following a heart attack.

Dosage and Direction

Take Zestril exactly as directed by your doctor, with or without food, at the same time each day. If you take antacids, wait at least two hours after taking them before consuming Zestril, as antacids may interfere with its absorption.

Precautions

• Avoid alcohol while taking this medication.
• Inform your doctor if you are pregnant, as Zestril can harm an unborn baby.
• Do not use salt substitutes or potassium supplements during treatment.
• Drink plenty of water while using Zestril.
• Do not take this medication if you have a history of allergy to lisinopril or other ACE inhibitors.
• Regularly monitor your blood pressure while on this medication.

Contraindications

Zestril is contraindicated in cases of hypersensitivity, pregnancy, or a history of angioedema.

Possible Side Effects

Zestril may cause elevated potassium levels, which in rare cases can lead to muscle weakness or an extremely slow heartbeat. Other potential side effects include:

• Allergic reactions (hives, swelling, rash)
• Headache, dizziness, or fatigue
• Nausea, diarrhea, or dry cough
• Blurred vision

Contact your doctor immediately if you experience severe side effects such as changes in urine volume, vision problems, loss of consciousness, impotence, chest pain, jaundice, yellowing of the eyes, or dark urine.

Drug Interactions

Do not take Zestril with potassium supplements or potassium-sparing diuretics. Combining Zestril with injectable gold may result in facial flushing, nausea, vomiting, and hypotension.

Missed Dose

If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed one. Do not double the dose to compensate.

Overdose

If you suspect an overdose and experience extreme dizziness, light-headedness, or fainting, seek immediate medical attention.

Storage

Store Zestril at room temperature (15-30°C or 59-86°F) in a light-resistant container.

Disclaimer

The information provided here is general and does not cover all directions, drug interactions, or precautions. It should not be used for self-diagnosis or self-treatment. Always consult your healthcare provider for specific instructions tailored to your condition. We are not responsible for any errors in this information or for any consequences resulting from its use.