(Cialis) Lowest Prices – Canadian Pharmacy

What is Cialis?

  • Cialis (Tadalafil) is a prescription medication used to treat erectile dysfunction and benign prostatic hyperplasia.

How does it work?

  • It works by dilating the blood vessels that carry blood to the penis. When the penis is sexually stimulated, the dilated blood vessels can more easily initiate and maintain an erection.
  • For benign prostatic hyperplasia, Cialis regulates the smooth muscle tone and decreases inflammation of the prostate.

How is it supplied?

  • You can buy Cialis online in the following forms and strengths:
    • Cialis
      • 2.5mg tablet
      • 5mg tablet
      • 10mg tablet
      • 20mg tablet
    • Generic Cialis (Tadalafil)
      • 2.5mg tablet
      • 5mg tablet
      • 10mg tablet
      • 20mg tablet

How should I store it?

  • Store your Cialis at room temperature and keep it out of reach of children.
Fact Table
Formula C22H19N3O4
License US FDA
Bio availability Varies
Legal status US: RX Only
Chemical Name Tadalafil
Elimination half-life 17.5 hours
Dosage (Strength) 2.5mg, 5mg, 10mg, 20mg
Pregnancy No known risks
Brands Cialis, Adcirca
Protein binding 94%
PubChem CID 110635
MedlinePlus a604008
ChEBI 71940
ATC code G04BE08
DrugBank DB00820
KEGG D02008
Routes of administration By mouth (tablets)


Should I take Cialis with food?

  • You can take Cialis without regard to meals.

Are there any special instructions?

  • Take your Cialis 30 minutes to one hour before sexual activity. Some patients find that taking Cialis up to four hours before sexual activity works well for them.
  • Cialis can be used once daily for maintenance treatment of erectile dysfunction and benign prostatic hyperplasia. Take your Cialis exactly as prescribed.
  • Do not split your Cialis tablets.

What is the usual dose?

  • For erectile dysfunction
    • When using on an as-needed basis – Take 10mg by mouth one hour before sexual activity.
      • Your doctor could increase or decrease your dose, depending on your results.
      • Do not take more than one dose per day.
    • For daily dosing – Take 2.5mg by mouth once per day.
      • Your doctor could increase your dose to 5mg per day.
      • Do not take more than one dose per day.
    • For benign prostatic hyperplasia
      • Take 5mg by mouth once daily.


What is the active ingredient in Cialis?

  • Tadalafil

What are the inactive ingredients?

  • For a complete list of inactive ingredients, click here.


Who should avoid taking Cialis?

  • Do not use Cialis if you have a known allergy to any of the ingredients.
  • Talk to your doctor before using Cialis to make sure your heart is healthy enough to use Cialis.

What are the risks?

  • Cialis can be dangerous for patients with cardiovascular conditions. Discuss your risk with your doctor if you have any of the following:
    • High or low blood pressure
    • Aortic stenosis
    • Veno-occlusive disease
    • Angina during sexual intercourse or unstable angina
    • Uncontrolled arrhythmia
    • Heart failure
    • Heart attack within the last 90 days
  • If you have a bleeding disorder or active peptic ulcer, you could experience increased bleeding times while using Cialis.
  • Cialis is not recommended for patients who have had a stroke within the last six months.
  • Talk to your doctor if you have liver or kidney problems. They could adjust your dose as appropriate.
  • Cialis can cause a sudden loss of vision or hearing.
  • Cialis can cause persistent and painful erections. You could be at an increased risk if you have any of the following:
    • Anatomical deformation of the penis (angulation, curvature, cavernosal fibrosis, or Peyronie disease)
    • Sickle cell anemia
    • Multiple myeloma
    • Leukemia
  • If you experience an erection that lasts more than four hours, contact your doctor immediately.

Drug Interactions

Cialis is contraindicated if you use any of the following medications

  • Organic nitrates
  • Boceprevir
  • Telaprevir
  • Riociguat

Talk to your doctor before taking Cialis if you use any of the following medications

The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information does not replace the advice of a physician. is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment. RxDrugsCanada.com disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to our Legal Terms and Condition and Privacy Policy.