Prinivil (Lisinopril)

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Prescription Required.

Product of Canada.

Shipped from Canada.

Prescription Required.Product of Canada.Shipped from Canada.

Prinivil (Lisinopril)

What is Prinivil (Lisinopril)?

Prinivil is a medication prescribed to treat essential hypertension and renovascular hypertension. It may be prescribed alongside other antihypertensive agents. Prinivil contains the active ingredient Lisinopril, which belongs to a drug class called ACE Inhibitors. Lisinopril acts to relax blood vessels, allowing blood to flow.


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.


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.


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.


Excessive sweating, diarrhea, or vomiting can cause dehydration, which can exacerbate light-headedness.


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.


Prinivil contains the active ingredient Lisinopril, which belongs to a class of drugs called ACE inhibitors. Prinivil acts to treat high blood pressure and is prescribed following a heart attack or in heart failure. It relaxes blood vessels, allowing blood to flow.

Prinivil can be taken at any time of day, as long as it is taken at the same time each day.

Prinivil can be taken with or without food and should be swallowed with a large glass of water (tablets), or measured accurately with an approved device (suspension form).

If you miss a dose of Prinivil, take it as soon as you remember. If you remember close to the time of your next scheduled dose, skip the missed dose altogether. Take the next dose as scheduled. Do not double up doses to catch up.

An overdose of Prinivil would likely cause hypotension (low blood pressure), which can be treated with intravenous saline infusion. In a suspected overdose, seek medical help or go to the nearest hospital.

Prinivil can work very quickly if taken correctly. In some people, blood pressure can drop immediately. Results can vary between individuals, however, if the medication is taken consistently results can be seen very soon after starting the medication.

It is not known whether Prinivil is safe for children under 6 years of age. Therefore it is not recommended that children under 6 take this medication. Pregnant people should not take Prinivil due to the risk it poses to the unborn baby. People who have had angioedema should not take Prinivil. People with diabetes or kidney disease should take care with what other medications they are taking.