What is Prinivil (Lisinopril)?
Prinivil is a prescription medication that belongs to a class of drugs known as ACE inhibitors. It is primarily used to treat high blood pressure (hypertension) and heart failure. Prinivil works by relaxing blood vessels, allowing blood to flow more easily and reducing the workload on the heart. This helps to lower blood pressure and improve overall heart function. Additionally, it may be prescribed to prevent kidney problems in people with diabetes. Prinivil is typically taken orally once a day, with or without food. Common side effects may include dizziness, cough, headache, and fatigue. It is important to follow the prescribed dosage and consult a healthcare professional for personalized advice.

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What is Prinivil (Lisinopril)?
Prinivil is a medication that contains the active ingredient Lisinopril. It is a prescription medication that belongs to a class of drugs known as ACE inhibitors which is primarily used to treat high blood pressure (hypertension) and heart failure. Prinivil works by relaxing blood vessels, allowing blood to flow more easily and reducing the workload on the heart. This helps to lower blood pressure and improve overall heart function. Additionally, it may be prescribed to prevent kidney problems in people with diabetes. It is typically taken orally once a day, with or without food. Common side effects may include dizziness, cough, headache, and fatigue. It is important to follow the prescribed dosage and consult a healthcare professional for personalized advice.
Dosage
Prinivil should be taken by mouth, with or without food. For the suspension form, dosage should be measured with a measuring device, not a household spoon, to ensure the correct amount is taken. Prinivil tablets are available in 10mg strengths and should be taken with a glass of water (with or without food). Dosage is calculated based on the severity of your condition and how you respond to treatment. When prescribed to children, the dosage is also influenced by weight. Prinivil should be taken daily, at the same time each day.
Storage
Store tablets and suspension out of direct light and away from moisture. Keep away from children and pets. Store in a location that will not exceed 25°C. Dispose of any unused suspension after 4 weeks. Dispose of expired or surplus medication responsibly, following the instructions of your healthcare provider.
Side Effects
All medications are associated with side effects. It is important to recognize that your doctor has determined that the risk of side effects is outweighed by the potential benefit that this medication may provide. This can vary across individuals, and you may not experience any side effects at all.
Common Side Effects
Prinivil is commonly associated with the following side effects:
- Dizziness
- Light-headedness
- Tiredness
- Headache
- Dry cough
If you experience any of these side effects and they concern you, get any worse or do not resolve on their own, contact your healthcare provider.
Severe Side Effects
This medication can occasionally have severe side effects, that should be taken seriously. If you experience any of the following, seek medical help immediately:
- Fainting
- Muscle weakness
- Slow or irregular heartbeat
- Changes in amount or color of urine
If you notice signs that could indicate liver damage, seek emergency medical help right away. These include:
- Nausea and/or vomiting that does not cease
- Appetite loss
- Severe abdominal pain
- Yellow eyes/skin
- Dark urine
Allergic reactions to this drug are rare, but not impossible. Seek emergency medical help if you notice any of the following:
- Rash
- Facial swelling
- Severe dizziness
- Difficulty breathing
This is not an exhaustive list of side effects. If you notice any unusual changes or anything concerns you, contact your healthcare provider right away.
Warnings & Precautions
Ensure your doctor is aware of your medical history prior to starting this medication. As this medication can cause dizziness, avoid operating heavy machinery (including driving) until you know how the drug affects you.
Allergies
Inform your doctor if you are allergic to the active ingredient Lisinopril, or any of the inactive ingredients in Prinivil. Include any other allergies you have. Be sure to let your doctor know if you have previously had an allergic reaction that caused facial swelling (including lips, tongue, and/or throat).
Alcohol & Marijuana Use
Prinivil can cause dizziness. It is recommended to avoid other things that can exacerbate dizziness, including alcohol and marijuana.
Dehydration
Excessive sweating, diarrhea, or vomiting can cause dehydration, which can exacerbate light-headedness.
Potassium
Prinivil may increase your potassium levels. Consult your doctor before taking potassium supplements.
Pregnancy & Breastfeeding
Prinivil is not recommended during pregnancy as it may pose a risk to the unborn baby. It is not known whether it can pass into breast milk, so consult your doctor before breastfeeding while on this medication.
What You Can Do
Several lifestyle changes can aid the effectiveness of this medication. Regular exercise, a low-cholesterol/low-fat diet, and stopping smoking are all things that can help In addition, you should monitor your blood pressure and heart rate regularly while taking this medication, and expect regular lab tests for kidney function and potassium levels.
Interactions & Contraindications
Drugs taken concurrently can sometimes interact with one another and lead to changes in how they work or cause unwanted side effects. Keep track of medications you take (including prescription and non-prescription) and ensure your doctor is aware of all of them. Do not start, stop, or make any changes to your medication schedule without consulting your doctor first.
Prinivil can interact with the following products:
- Aliskiren
- Everolimus
- Sirolimus
- Lithium
- ARBs including losartan, valsartan
- Contraceptive pills containing drospirenone
- Sacubitril
Products that have the capacity to raise blood pressure or exacerbate heart failure should be taken with care. These include cold medicines, diet aids, and NSAIDS (non-steroidal anti-inflammatory drugs). Ask your doctor which of these are safe for you.
Injections to counteract bee or wasp sting allergies can lead to a serious reaction if you are taking Prinivil. Ensure your doctor is aware of your medication schedule.