Cialis (Tadalafil) – Complete Medication Guide

Cialis is the brand name for tadalafil, a prescription medication belonging to the phosphodiesterase type 5 (PDE5) inhibitor class. It is approved to treat erectile dysfunction (ED), the signs and symptoms of benign prostatic hyperplasia (BPH) (an enlarged prostate), and, under a different brand name, certain forms of pulmonary arterial hypertension (PAH). It works by improving blood flow through relaxation of blood vessels.

This guide provides general educational information about Cialis, including its uses, available strengths, safety information, possible side effects, and frequently asked questions. It is intended for informational purposes only and should not replace professional medical advice.

What Is Cialis?

Cialis contains the active ingredient tadalafil. For erectile dysfunction, it helps increase blood flow to the penis during sexual stimulation, making it easier to achieve and maintain an erection. It does not increase sexual desire, cure erectile dysfunction, or protect against sexually transmitted infections.

Healthcare providers may also prescribe tadalafil to improve urinary symptoms associated with an enlarged prostate or, under a different brand, to treat pulmonary arterial hypertension.

Common Uses

Healthcare providers may prescribe Cialis for:

• Erectile dysfunction (ED)

• Benign prostatic hyperplasia (BPH)

• Erectile dysfunction with BPH

• Pulmonary arterial hypertension (under a different brand name)

• Other medically appropriate uses determined by a healthcare professional

Available Strengths and Formulations

Cialis tablets are commonly available in:

• Cialis 5 mg

• Cialis 10 mg

• Cialis 20 mg

Depending on the condition being treated, tadalafil may be prescribed as:

• A once-daily medication

• An as-needed medication before anticipated sexual activity

Your healthcare provider will determine the appropriate dosage and schedule based on your medical history and treatment goals.

How Cialis Works

Cialis works by blocking the PDE5 enzyme, allowing blood vessels to relax and increasing blood flow.

Its effects may help:

• Improve erectile function during sexual stimulation

• Reduce urinary symptoms associated with BPH

• Improve blood flow in certain lung blood vessels for patients with PAH

Unlike some other medications in its class, tadalafil has a relatively long duration of action and may remain effective for up to 36 hours for erectile dysfunction, although individual response varies.

Possible Side Effects

Like all prescription medications, Cialis may cause side effects.

Common Side Effects

• Headache

• Flushing

• Indigestion

• Back pain

• Muscle aches

• Nasal congestion

• Dizziness

Serious Side Effects

Seek immediate medical attention if you experience:

• Chest pain

• Sudden loss of vision

• Sudden decrease or loss of hearing

• An erection lasting longer than 4 hours (priapism)

• Severe allergic reactions

• Difficulty breathing

Important Safety Information

Before taking Cialis, tell your healthcare provider if you:

• Have heart disease

• Have low or uncontrolled high blood pressure

• Have liver or kidney disease

• Have had a recent heart attack or stroke

• Have eye conditions affecting the retina or optic nerve

• Are taking medications for chest pain or high blood pressure

Do not take Cialis if you use nitrate medications, as this combination can cause a dangerous drop in blood pressure.

Drug Interactions

Cialis may interact with:

• Nitrate medications

• Alpha-blockers

• Blood pressure medications

• Certain antifungal medications

• Certain antibiotics

• HIV medications

• Other medications used to treat erectile dysfunction

Always provide your healthcare provider with a complete list of all medications and supplements you take.

Storage Information

Store Cialis:

• At room temperature

• Away from excessive heat and moisture

• In its original container

• Out of the reach of children and pets

Dispose of expired or unused medication according to local medicine disposal recommendations.

Frequently Asked Questions

What is Cialis used for?

Cialis (tadalafil) is prescribed to treat erectile dysfunction, symptoms of benign prostatic hyperplasia, and certain forms of pulmonary arterial hypertension under a different brand name.

Is Cialis the same as tadalafil?

Yes. Cialis is the brand name, while tadalafil is the active ingredient.

How long does Cialis last?

For erectile dysfunction, the effects of tadalafil may last up to 36 hours, although this varies from person to person.

Can I take Cialis with alcohol?

Alcohol may increase side effects such as dizziness and low blood pressure. Discuss alcohol use with your healthcare provider, particularly if you have underlying medical conditions or take other medications.

Learn More

For evidence-based information about tadalafil, visit:

• MedlinePlus: https://medlineplus.gov/druginfo/meds/a604008.html

• DailyMed: https://dailymed.nlm.nih.gov

• U.S. Food and Drug Administration (FDA): https://www.fda.gov