Product Name & Packaging
Brand Name: CIALIS
Generic Name: Tadalafil
Strength & Packaging: 100 × 80 mg tablets

Description
Cialis contains tadalafil, an oral phosphodiesterase type 5 (PDE5) inhibitor used primarily in the treatment of erectile dysfunction. It enhances erectile response by increasing blood flow to the penile tissue during sexual stimulation. Tadalafil is also used in approved formulations for the treatment of benign prostatic hyperplasia (BPH).

Indications
Tadalafil is indicated for the treatment of erectile dysfunction (ED). In standard approved labeling, tadalafil is also indicated for the signs and symptoms of benign prostatic hyperplasia, and for men with both ED and BPH where clinically appropriate.

Dosage & Administration
For erectile dysfunction used as needed, the usual recommended starting dose is 10 mg prior to anticipated sexual activity, which may be increased to 20 mg or reduced to 5 mg based on response and tolerability. The maximum recommended dosing frequency is once daily. For once-daily therapy, lower strengths are typically used. Administration should follow the prescribing physician’s instructions and approved product labeling.

Mechanism of Action
Tadalafil selectively inhibits PDE5, resulting in increased cyclic guanosine monophosphate (cGMP) levels in the corpus cavernosum during sexual stimulation. This promotes smooth muscle relaxation and increased blood flow, thereby supporting erectile function.

Precautions
Tadalafil is contraindicated in patients taking nitrates because it may cause significant hypotension. It should be used cautiously in patients with cardiovascular disease, those receiving alpha-blockers or antihypertensive therapy, and patients with renal or hepatic impairment. Immediate medical attention is required for priapism, sudden vision loss, or sudden hearing loss.

Side Effects
Common adverse effects include headache, dyspepsia, back pain, myalgia, nasal congestion, flushing, and pain in the limbs. Dizziness and other dose-related adverse reactions may also occur. Patients should seek medical advice if side effects are severe or persistent.

Storage
Store at controlled room temperature, protected from excessive heat and moisture, and keep out of reach of children. Keep the product in its original packaging unless otherwise directed by the manufacturer.

One important note: the generic name for Cialis is tadalafil, but 80 mg is not a standard approved Cialis tablet strength. Official Cialis labeling lists tablet strengths of 5 mg, 10 mg, and 20 mg. You may want to verify the stated strength before using this in a formal pharmacy catalog.