Description
Tastylia (Tadalafil) 20 mg
Tastylia 20 mg is a tadalafil product. Tadalafil is a phosphodiesterase type 5 (PDE5) inhibitor used for erectile dysfunction. The verified medical information below is based on authoritative prescribing information and peer-reviewed literature for tadalafil.
Active Ingredient and Medicine Class
Active ingredient: tadalafil.
Medicine class: phosphodiesterase type 5 (PDE5) inhibitor.
Tadalafil is a vasodilating medicine that acts on the nitric oxide–cGMP pathway in penile tissue, helping support erection in response to sexual stimulation.
Established Medical Uses
Authoritative prescribing information identifies tadalafil as a treatment for erectile dysfunction. Some approved tadalafil products are also used for benign prostatic hyperplasia, but the product name here is presented as an erectile dysfunction product and that specific use is the one verified from the supplied description and core regulatory sources.
How It Works
Tadalafil inhibits PDE5, an enzyme that breaks down cyclic guanosine monophosphate (cGMP). By reducing cGMP breakdown, it helps increase smooth-muscle relaxation and blood flow in the penis during sexual stimulation, which supports erection.
Important Safety Information
Tadalafil is contraindicated with nitrates and with guanylate cyclase stimulators because of the risk of marked blood-pressure lowering. It should also be avoided in people with known hypersensitivity to tadalafil or any component of the product.
Important precautions include cardiovascular disease, risk of hypotension, prolonged erection or priapism, eye-related adverse reactions including sudden vision loss, and sudden hearing loss. Clinically significant interactions may occur with alpha-blockers, antihypertensives, alcohol, and strong CYP3A4 inhibitors such as ketoconazole or ritonavir.
Possible Side Effects
Common adverse effects reported with tadalafil include headache, dyspepsia, back pain, myalgia, nasal congestion, flushing, and dizziness. Serious but uncommon reactions can include priapism, sudden loss of vision, sudden hearing loss, severe allergic reactions, and significant blood-pressure changes.
Scientific Evidence
Peer-reviewed reviews and clinical evidence describe tadalafil as an effective PDE5 inhibitor for erectile dysfunction, with a long duration of action compared with some alternatives. Meta-analyses and clinical reviews have reported improvement in erectile function across a range of severities and underlying causes, with headache and dyspepsia among the most frequent side effects.
Medical Information Notice
This page is an educational summary based on sources available at the time of review. It does not replace the official patient leaflet or assessment by a qualified healthcare professional.
Medical Sources
- U.S. Food and Drug Administration (FDA) — Tadalafil tablets, full prescribing information
- Eric J H Meuleman — Review of tadalafil in the treatment of erectile dysfunction — Expert Opinion on Pharmacotherapy (2003)
