Lisinopril 40mg
Generic For: Prinivil / Zestril
Lisinopril 40mg (Prinivil, Zestril) is an ACE inhibitor used to treat high blood pressure, heart failure, and to improve survival after a heart attack. Many patients compare lisinopril vs amlodipine or take the two together under a doctor's guidance for blood pressure control. After review of your prescription by a licensed provider, your order ships from a licensed U.S. pharmacy.
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100-day supply · $0.25/tablet
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Price: $25.00
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Buy Lisinopril 40mg Online
ACE inhibitor tablet for high blood pressure, heart failure, and recovery after a heart attack
Lisinopril 40mg Quick Facts
| Drug class | ACE inhibitor |
|---|---|
| Treats | High blood pressure, heart failure, post-heart attack care |
| Form | Tablet |
| Typical dosing | Take 1 tablet by mouth daily. |
| Prescription required | Yes — prescription only |
What Is Lisinopril 40mg?
Lisinopril is an angiotensin-converting enzyme (ACE) inhibitor that relaxes blood vessels so the heart doesn't have to work as hard. It is prescribed for high blood pressure, heart failure, and to improve survival after an acute heart attack. It works differently from calcium channel blockers such as amlodipine, which is why lisinopril and amlodipine are sometimes prescribed together when one medication alone doesn't control blood pressure. The 40mg tablet is typically the maximum daily maintenance strength.
What Does Lisinopril 40mg Treat?
High blood pressure (hypertension) in adults
High blood pressure in children 6 years and older
Heart failure (adjunctive treatment)
Improving survival after acute heart attack (myocardial infarction)
Reducing strain on the heart and blood vessels
Lisinopril 40mg Dosage
Hypertension: 10mg by mouth once daily initially; maintenance 20–40mg once daily.
Heart failure: 5mg once daily initially; titrate as tolerated up to 40mg once daily.
Post-MI: 5mg within 24 hours, 5mg after 24 hours, 10mg after 48 hours, then 10mg once daily.
Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.
Lisinopril 40mg Side Effects
Common side effects
- Dizziness or lightheadedness
- Dry, persistent cough
- Headache
- Fatigue
- Low blood pressure (hypotension)
- Nausea
- Elevated blood potassium
Serious side effects
Stop taking this medication and seek medical attention right away if you experience:
- Swelling of face, lips, tongue, or throat (angioedema)
- Severe hypotension or fainting
- Signs of kidney problems (reduced urination, swelling)
- High potassium (irregular heartbeat, muscle weakness)
- Signs of liver problems (jaundice, dark urine)
- Severe allergic reaction
Warnings & Interactions
Do not use during pregnancy — can cause fetal harm; stop and call your provider if pregnant
Contraindicated with history of ACE inhibitor–related angioedema
Do not combine with aliskiren in patients with diabetes
Avoid potassium supplements or salt substitutes unless directed by your provider
NSAIDs may reduce effectiveness and worsen kidney function
Use caution with diuretics — risk of excessive blood pressure drop
Monitor kidney function and potassium during treatment
Tell your prescriber about all medications, supplements, and health conditions before starting lisinopril 40mg.
Sources & References
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