Cialis

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Generic: tadalafil

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Information reviewed July 24, 2026

Rank #89 in US TV Ads
Class: PDE5 Inhibitor

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What is it for?

A widely recognized prescription pill for erectile dysfunction, also used for symptoms of an enlarged prostate.

Primary Condition

Erectile dysfunction, enlarged prostate (BPH)

How it works

Blocks the PDE5 enzyme to relax blood vessels and improve blood flow, with a longer-lasting effect than some alternatives.

Common Side Effects

This is not a complete list of side effects. Always consult with a doctor.

  • Headache
  • Flushing
  • Indigestion
  • Back pain
  • Nasal congestion

Cialis FAQs

What is Cialis used for?

Cialis (tadalafil) is a prescription medication used to treat Erectile dysfunction, enlarged prostate (BPH). A widely recognized prescription pill for erectile dysfunction, also used for symptoms of an enlarged prostate.

How does Cialis work?

Blocks the PDE5 enzyme to relax blood vessels and improve blood flow, with a longer-lasting effect than some alternatives.

What are the common side effects of Cialis?

Commonly reported side effects of Cialis include Headache, Flushing, Indigestion, Back pain, and Nasal congestion. This is not a complete list — tell your doctor or pharmacist about any side effects you experience.

Does Cialis have any serious warnings?

Cialis does not carry an FDA Boxed Warning, but every prescription medicine has risks and possible interactions. Always follow your doctor's instructions and read the medication guide that comes with it.

What is the generic name for Cialis?

The active ingredient in Cialis is tadalafil, which belongs to a class of medicines known as PDE5 Inhibitor.

Who makes Cialis?

Cialis is manufactured by Eli Lilly. It was first approved in 2003.

How can I save money on Cialis?

You may be able to lower the cost of Cialis by using a free pharmacy discount card or by comparing prices across pharmacies before you fill your prescription. Savings vary by pharmacy and location.

Common questions about Cialis

Other Men's Health medications

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Quick Facts

Manufacturer

Eli Lilly

Year Approved

2003

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