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MEDICAL INFORMATION
Cialis Key Facts
What is Cialis?
Cialis is the brand name for tadalifil and is available as an oral tablet.
What dosages is Cialis available in?
Cialis is available as a 2.5 mg, 5 mg, 10 mg, and 20 mg oral tablet.
What is Cialis used for?
Cialis is a PDE-5 inhibitor used for erectile dysfunction.
How does Cialis work?
Cialis is a phosphodiesterase-5 enzyme (PDE-5) inhibitor. It works by blocking PDE-5. This is a protein in your body that breaks down the molecules that normally cause an erection. When it blocks PDE-5, Cialis helps an erection occur by allowing certain muscles in the penis to relax and the penis to fill with blood.
How do I take Cialis?
Cialis is typically taken by mouth about 30 minutes before sexual activity up to once per day as needed. Your provider will adjust your dose based on your response.
Is it safe for me to take Cialis?
Cialis is a safe and effective treatment when used for FDA licensed indications. However, like all medications, they may give you unwanted side effects. You should always discuss potential side effects with your physician to ensure the medication is suitable and right for you. You should not use this medication if you using any form of organic nitrate is contraindicated, have a history of known serious hypersensitivity reaction to Cialis or ADCIRCA, or are taking a guanylate cyclase (GC) stimulator such as riociguat.
Cialis Common Side Effects
Common side effects of Cialis include:
- Headache
- Runny nose, sore throat, and other symptoms of the common cold
- Indigestion
- Stomach upset
- Back pain
- Indigestion
- Back pain
Other Side Effects:
- Muscle ache
- Flushing
- Pain in arms or legs
- Diarrhea
- Dizziness
Cialis Serious Side Effects
Serious side effects are rare with Cialis. Contact your healthcare provider immediately if you experience any of the following.
- Erection lasting for more than 4 hours
- Vision loss
- Dangerously low blood pressure: feeling faint or weak, dizziness, blurry vision, feeling confused
Effects of other drugs, drug classes and over-the-counter products on Cialis
The following medications may interact with Cialis:
- Cialis can potentiate the hypotensive effects of nitrates, alphablockers, antihypertensives or alcohol.
- CYP3A4 inhibitors (e.g. ketoconazole, ritonavir) can increase Cialis exposure requiring dose adjustment.In this situation the dose should be no more than 10 mg every 72 hours and Cialis for once daily use: dose not to exceed 2.5 mg.
- CYP3A4 inducers (e.g. rifampin) decrease Cialis exposure requiring dose adjustment.
Who makes Cialis?
Eli Lilly & Company
Is Cialis safe in pregnancy?
Cialis is not indicated for use in females.
What is the generic name for Cialis?
Medical Disclaimer
NowPatient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information on this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.
The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.
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