Disclaimer: This article is for informational purposes only and does not constitute medical advice. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition.

Overview

Disclaimer: This article is for informational purposes only and does not constitute medical advice. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition.

Tadalafil Brands and Category

Tadalafil is a prescription medication authorized for sale in Canada. It is classified as a Schedule I drug, meaning you need a prescription from a licensed healthcare provider to obtain it. The most well-known brand name version is CIALIS®. Health Canada has also authorized several generic versions, such as APO-TADALAFIL and TEVA-TADALAFIL. It is primarily used to treat erectile dysfunction (ED) in men and the signs and symptoms of benign prostatic hyperplasia (BPH). (Source : Mayo clinic )

Generic:Tadalafil
Class:Phosphodiesterase type 5 (PDE5) inhibitor
Category:sexual health
Prescription Required
Available in Canada

How Tadalafil Works

Tadalafil belongs to a class of medicines called phosphodiesterase type 5 (PDE5) inhibitors. (Source : Mayo clinic ) In simple terms, it works by helping the blood vessels in the penis relax. When a man is sexually stimulated, this relaxation allows blood to flow into the penis more easily, which helps produce and maintain an erection. The product monograph notes that the medication does not work without physical sexual stimulation. For BPH, it works by relaxing muscles in the prostate and bladder

Dosage Instructions of Tadalafil

Available tadalafil formulations in Canada.

In Canada, tadalafil is available primarily as oral tablets. The tablets come in various strengths including 2.5 mg, 5 mg, 10 mg, and 20 mg. These are film-coated tablets designed for easy oral administration. Some brand formulations may differ in packaging or tablet shape, but the active ingredient remains the same.

General guidelines for taking tadalafil safely.

Tadalafil tablets should be taken exactly as prescribed by a healthcare professional. It is typically taken orally, with or without food. Dosage and timing depend on individual factors and the specific brand prescribed. Patients should not exceed the recommended dose and should consult their doctor before making any changes. It is important to follow all medical advice regarding frequency and timing.

Storage Instructions

How to store tadalafil tablets properly. Store tadalafil tablets at room temperature between 15°C and 30°C (59°F to 86°F). Keep the medication in its original packaging, away from moisture and direct sunlight. Ensure the tablets are stored out of reach of children and pets. Do not use the medication past its expiration date.

Side Effects of Tadalafil

According to Health Canada data, patients taking tadalafil may experience side effects.(Source: hpr-rps.hres.ca) The most commonly reported side effects include headache, indigestion (dyspepsia), back pain, and muscle pain (myalgia). Other possible effects are nasal congestion, flushing (redness of the face), and pain in the arms or legs. Rare but serious reactions mentioned in Canadian safety data include sudden vision changes, hearing loss, or an erection lasting more than four hours (priapism), which requires immediate medical attention.

(source: National library of Medicine)

Important Safety Information About Tadalafil

Key warnings and precautions from Health Canada.

Health Canada advises that tadalafil should be used cautiously in individuals with cardiovascular conditions or those taking nitrate medications. Tadalafil is not recommended for use with certain heart medicines due to risks of severe low blood pressure. Patients should disclose their full medical history to their doctor before starting tadalafil. Use during pregnancy or breastfeeding is generally not advised.

Drug Interactions

Substances to avoid while using tadalafil.

Tadalafil may interact with nitrate medications, certain blood pressure drugs, and some antifungal or antibiotic agents. Combining tadalafil with nitrates can cause dangerous drops in blood pressure. It is important to inform your healthcare provider about all medications and supplements you are taking to avoid interactions.

Brands & DIN Number of Tadalafil

Brand Names

  • Cialis®
  • Adcirca®

DIN (Drug Identification Numbers)

02345678

Key Takeaways

  • 1Tadalafil is a Schedule I prescription drug used for erectile dysfunction and BPH.
  • 2t works by relaxing blood vessels to improve blood flow during sexual stimulation.
  • 3Common side effects include headache, back pain, and indigestion.
  • 4CIALIS® is the major brand name, though generics like APO-TADALAFIL are available.

Frequently Asked Questions

Updated:February 11, 2026