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Buy Prinivil (Lisinopril) Online from a Canadian Pharmacy



Prinivil, also known as lisinopril, is an FDA-approved angiotensin-converting enzyme (ACE) inhibitor prescribed to treat high blood pressure, heart failure, and acute myocardial infarction. Dosage varies based on the patient’s condition, typically starting at 10 mg once daily for hypertension. It is crucial to follow safety guidelines, including avoiding use during pregnancy and in patients with a history of angioedema. Prinivil should be stored at room temperature in a tightly sealed container, away from moisture and heat. Contraindications include hypersensitivity to lisinopril or other ACE inhibitors and concurrent use with aliskiren in diabetic patients.

Product Overview

Prinivil, also known as lisinopril, is an angiotensin-converting enzyme (ACE) inhibitor used primarily to treat high blood pressure (hypertension), heart failure, and acute myocardial infarction (heart attack). It works by relaxing blood vessels, allowing blood to flow more smoothly and the heart to pump more efficiently. This medication has various strengths, including 2.5mg, 5mg, 10mg, 20mg, 30mg, and 40mg tablets and a 1mg/mL oral solution (Qbrelis).

Dosage is individualized based on the patient’s condition and response to treatment. For high blood pressure, treatment typically starts with 10 mg once daily, potentially increasing to 20 mg. Those with kidney issues or on diuretics may begin with lower doses. It is essential to take Prinivil consistently, preferably at the same time each day, to maintain its effectiveness.

Patients should be aware of potential side effects, such as dizziness, cough, and swelling (angioedema), and consult their doctor immediately if they experience severe reactions. Proper storage of Prinivil is essential to ensure its efficacy. A tightly sealed container should be kept at room temperature, away from moisture and heat. Patients should also inform their healthcare provider of their medical history, any allergies, and all medications they are taking to avoid potential interactions and complications. 

Uses of Prinivil

  • Used to treat high blood pressure (Hypertension)
  • Used to treat heart failure
  • Used to treat acute myocardial infarction (heart attack)

How to Use Prinivil?

  • As your doctor instructs, take the medication orally, with or without food.
  • If using the liquid form, shake the bottle well before each dose.
  • Use a particular measuring device or spoon to measure the dose accurately.
  • Do not use a household spoon, as it may not provide the correct dose.
  • The amount you take depends on your health condition and how you respond to the medication.
  • For children, the amount also depends on their weight.


Strengths and Forms

  • 2.5mg
  • 5mg
  • 10mg
  • 20mg
  • 30mg
  • 40mg

Oral solution

  • 1mg/mL (Qbrelis)

Recommended Dosage for Different Patients

  • Patients with high blood pressure typically begin with a dose of 10 mg once daily, which may be increased to 20 mg.
  • Those with kidney failure or taking diuretics usually start with lower doses, ranging from 2.5 to 5 mg.
  • Patients who have had a heart attack or have heart failure also start with a low dose of 5 mg once a day.
  • Prinivil is not advised for children under 6 years old or for those with a glomerular filtration rate of less than 30 mL per minute; doses for children are based on their weight.

[Note: Remember, these recommendations may vary from person to person. It’s best to consult your doctor and get your dosage accordingly.]

How to Take It?

  • Prinivil is taken once a day.
  • If using the liquid form, shake the bottle well before each dose.
  • Regularly check your blood pressure and expect frequent blood tests.
  • Your doctor may adjust your dosage occasionally.
  • Take this medication at the same time each day.
  • If you miss a dose, take it as early as you remember, but if it’s close to the timing of your next dose. In that case, you can drop the missed dose.
  • Continue taking Prinivil even if you feel well.

[Note: Your doctor will prescribe the proper dosage based on your health condition. To help you recover better, they’ll adjust it as needed over time.]

How Does Prinivil Work?

Prinivil, also known as lisinopril, is part of a group of drugs called angiotensin-converting enzyme (ACE) inhibitors. It lowers blood pressure by reducing chemicals constricting blood vessels, allowing blood to flow more easily and the heart to pump more effectively. This helps decrease the risk of serious cardiovascular events like strokes and heart attacks. Remember, this information does not replace professional medical advice.

Important Safety Information

Side Effects

Common Side Effects

Prinivil may cause some common side effects, such as:

  • Cough
  • Headache
  • Dizziness
  • Feeling depressed
  • Feeling sleepy
  • Nausea
  • Stomach upset
  • Vomiting
  • Diarrhea
  • Mild itching or rash on the skin

Adverse/Serious Side Effects

Prinivil can lead to some severe side effects, such as:

  • Feeling lightheaded
  • Fever
  • Sore throat
  • Nausea
  • Weakness
  • Tingling sensation
  • Chest pain
  • Irregular heartbeats
  • Loss of movement
  • Little or no urination
  • Swelling in your feet or ankles
  • Feeling tired
  • Shortness of breath
  • Pain in the upper stomach
  • Itching
  • Feeling tired
  • Loss of appetite
  • Dark-colored urine
  • Stools that are clay-colored
  • Yellowing of the skin or eyes (jaundice)

[Note: The above-mentioned list may not cover all possible side effects. Always consult with your healthcare giver for medical advice about side effects.]


  • Do not take Prinivil if you are pregnant, as it may harm the unborn baby. If you become pregnant while using this medication, stop taking it and inform your doctor immediately.
  • Avoid using Prinivil if you have a history of angioedema. Also, do not take it within 36 hours before or after using any medication that contains sacubitril, like Entresto.
  • If you have diabetes, avoid using Prinivil with any medication containing aliskiren, such as Amturnide, Tekturna, or Tekamlo.
  • If you have kidney disease, you may need to avoid taking Prinivil with Aliskiren as well.

Boxed Warning

Prinivil has a boxed warning from the FDA due to its severe side effects:

  • Pregnancy: Do not take Prinivil if you are pregnant or planning to become pregnant. It can harm or be fatal to your unborn baby. Inform your doctor immediately if you become pregnant while taking this drug. Discuss alternative blood pressure treatments during pregnancy with your doctor.
  • Angioedema (Swelling): Prinivil can cause sudden swelling of your face, arms, legs, lips, tongue, throat, and intestines, which can be life-threatening. If you experience swelling or abdominal pain, contact your doctor immediately. You will be taken off this drug and may be given medication to reduce swelling. Swelling can occur at any time during treatment. The risk is higher if you have a history of angioedema or are Black.
  • Hypotension (Low Blood Pressure): Prinivil can cause low blood pressure, especially in the first few days of taking it. Tell your doctor if you feel lightheaded, dizzy, or like you’ll faint. You may be more prone to low blood pressure if you:
    • Are dehydrated
    • Are sweating heavily
    • Have diarrhea or vomiting
    • Have heart failure
    • Are undergoing dialysis
    • Take diuretics
  • Persistent Cough: This drug may cause a persistent cough that will resolve once you stop taking the medication.


  • Inform your doctor or pharmacist if you are allergic to lisinopril or other ACE inhibitors like benazepril.
  • Mention any other allergies you have, as this medication may contain inactive ingredients that could cause allergic reactions.
  • Share your medical history with your doctor or pharmacist, especially if you have had angioedema or blood filtering procedures like LDL apheresis or dialysis or if you have high potassium levels in your blood.
  • Be aware that this drug can make you dizzy, and alcohol or marijuana can intensify this effect. Avoid driving or operating machinery until you are sure you can do so safely. Limit your alcohol intake and discuss marijuana use with your doctor.
  • If you experience severe sweating, diarrhea, or vomiting, which can lead to dehydration and lightheadedness, inform your doctor. Drink plenty of fluids to prevent dehydration unless advised otherwise by your doctor.
  • Before any surgery, inform your doctor or dentist about all your products, including prescription and nonprescription drugs and herbal products.

Prinivil Contraindications 

Prinivil should not be used in patients who have:

  • A history of angioedema or allergic reactions due to previous use of an angiotensin-converting enzyme (ACE) inhibitor.
  • Hereditary or unknown cause of angioedema.
  • Do not use Prinivil with aliskiren in patients with diabetes.

Prinvil should not be used with a neprilysin inhibitor (such as sacubitril). Do not take Prinivil within 36 hours before or after using sacubitril/valsartan, a medication that contains a neprilysin inhibitor.

Missed Dose

You should take the medicine as soon as possible. However, if it’s nearly time for your next dose, skip the missed dose and do not take two doses at once.

[Note: If you have missed a medication dose and are unsure when to take the next one, immediately consult your doctor or pharmacist.]


If an overdose occurs, symptoms may include intense dizziness and fainting. In case of severe symptoms like unconsciousness or difficulty breathing, call emergency services immediately.

[Note: If you have over-consumed the medication, get medical help immediately, or call the Poison Helpline at 1-800-222-1222.]


  • Ensure the potency and safety of Prinivil by storing it properly.
  • Store at room temperature (68-77 degrees Fahrenheit).
  • Keep in a tightly sealed container, away from moisture, heat, and direct sunlight.
  • Ideal storage locations include cool, dry areas like a medicine cabinet or drawer.
  • Avoid storing it in areas prone to dampness or temperature fluctuations, such as bathrooms or kitchens.
  • Keep Prinivil out of reach and sight of children and pets to prevent accidental ingestion.
  • Dispose of any unused or expired tablets in accordance with local regulations or consult a pharmacist for guidance related to Prinivil price and use.

[Note: Discuss with your healthcare professional the proper disposal of unused medicine and any questions you may have regarding its storage.]

Prinivil Drug Interactions

  • Ambien (zolpidem)
  • Amlodipine
  • Aspirin
  • Aspirin Low Strength (aspirin)
  • Coreg (carvedilol)
  • Coumadin (warfarin)
  • Crestor (rosuvastatin)
  • Cymbalta (duloxetine)
  • Gabapentin
  • Glucophage (metformin)
  • Hydrochlorothiazide
  • Klonopin (clonazepam)
  • Lasix (furosemide)
  • Lipitor (atorvastatin)
  • Lopressor (metoprolol)
  • Metformin
  • Neurontin (gabapentin)
  • Nexium (esomeprazole)
  • Norvasc (amlodipine)
  • Plavix (clopidogrel)
  • Prilosec (omeprazole)
  • Protonix (pantoprazole)
  • Singulair (montelukast)
  • Synthroid (levothyroxine)
  • Toprol-XL (metoprolol)
  • Vitamin B12 (cyanocobalamin)
  • Vitamin D3 (cholecalciferol)
  • Xanax (alprazolam)
  • Zocor (simvastatin)
  • Zoloft (sertraline)

[Note: This isn’t an exhaustive list, and there could be other drug interactions possible with Prinivil. Inform your doctor of any prescription, over-the-counter medicines, and herbal products you’re taking.]

Prinivil Alternatives

[Note: Don’t take any of the above-mentioned alternative medications without consulting a certified healthcare provider, as they will prescribe a more suited dose based on your health background. Taking them by yourself may cause serious side effects.] 

Quick Tips

The Link Between High Cholesterol and High Blood Pressure: Causes and Symptoms

Frequently Asked Questions

Can Prinivil be used during pregnancy?

Using Prinivil during pregnancy is not recommended as it can harm the unborn baby. It is imperative to discuss with a physician regarding contraception measures while taking this medication. This is particularly true since many contraceptives can also harm the developing child.

Are there any specific instructions for taking Prinivil with food?

There are no particular guidelines for taking Prinivil with food. However, it can be taken with or without it as directed by your doctor. Sticking to the dosage and administration instructions the healthcare professional gives is essential.

What should I do if I experience prolonged diarrhea or vomiting while taking Prinivil?

If you have been taking Prinivil and have had an extended about of either diarrhea or vomiting, it is critical to inform your doctor immediately. This will help prevent dehydration and guarantee timely and appropriate medical treatment.

Are there any specific precautions to take while driving or using machinery while on Prinivil?

When taking Prinivil, being vigilant while driving or operating machinery is essential. This medication can cause adverse effects such as dizziness and lightheadedness, which can hamper your aptitude to do these activities safely.

How soon will my blood pressure decrease after taking a 5 mg dose of lisinopril?

The effect of lisinopril on blood pressure can vary from person to person. Some individuals may experience a drop in blood pressure right after the first dose, while others may take a bit longer. However, lisinopril generally starts working quickly. Since high blood pressure often has no symptoms, monitoring your blood pressure to determine if the medication is effective is essential.

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