Cialis is a prescription medication used to treat erectile dysfunction (ED) and, in some cases, benign prostatic hyperplasia (BPH). The active ingredient in Cialis is tadalafil, a PDE5 inhibitor, which works by increasing blood flow to the penis, helping men achieve and maintain an erection in response to sexual stimulation.

Key Features of Cialis Tablets:

Active Ingredient: Tadalafil:

Tadalafil is a medication that works by inhibiting the enzyme PDE5 (phosphodiesterase type 5). PDE5 is responsible for breaking down cGMP, a substance that helps relax the blood vessels in the penis and allow more blood to flow in, leading to an erection. By inhibiting PDE5, tadalafil helps to maintain higher levels of cGMP, promoting better blood flow to the penis during sexual arousal.

Uses:

Erectile Dysfunction (ED): Cialis is primarily used to treat ED, a condition where a man is unable to achieve or maintain an erection sufficient for sexual intercourse.
Benign Prostatic Hyperplasia (BPH): Cialis is also used to treat symptoms of BPH, a condition in which the prostate gland enlarges, causing urinary symptoms like frequent urination or difficulty starting urination.
Pulmonary Arterial Hypertension (PAH): Tadalafil is sometimes prescribed under the brand name Adcirca for the treatment of pulmonary arterial hypertension (high blood pressure in the arteries of the lungs).

How It Works:

Cialis works by increasing blood flow to the penis, helping men with ED to achieve and sustain an erection when sexually stimulated. It does not cause an erection on its own; sexual arousal is still required.
For BPH, Cialis helps to relax the muscles in the prostate and bladder, easing urinary symptoms.

Dosage:

Daily Use: Cialis can be taken daily at a lower dose (typically 2.5 mg or 5 mg per day). This option is suitable for men who anticipate sexual activity frequently and want the ability to be ready at any time.
As Needed: A higher dose (10 mg or 20 mg) is typically taken as needed at least 30 minutes before sexual activity. The effects can last for up to 36 hours, which is why Cialis is often called the "weekend pill" due to its long duration of action.

Duration of Action:

One of the distinctive features of Cialis compared to other ED medications (like Viagra) is its long duration. The effects can last for up to 36 hours, allowing for more spontaneity in sexual activity.