Medicine guide

Tadalafil

5 mg · Tablet

  • Prescription only
  • Phosphodiesterase 5 Inhibitor
Active substance
Tadalafil
Made by
Quallent Pharmaceuticals Health LLC

Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.

What it is for

Medicine groupUrinary and reproductive system, hormones

Mediclarum has not yet retrieved and stored the official label for this product, so none of its text is shown here. Open the official leaflet

How it works

From the US prescribing label for the same active substance (Tadalafil). It describes the substance, not this exact product.

Penile erection during sexual stimulation is caused by increased penile blood flow resulting from the relaxation of penile arteries and corpus cavernosal smooth muscle.

This response is mediated by the release of nitric oxide (NO) from nerve terminals and endothelial cells, which stimulates the synthesis of cGMP in smooth muscle cells.

Half-life17.5 h
Mostly cleared after≈ 4 daysfive half-lives — our arithmetic
How the body breaks it down

Metabolism — Tadalafil is predominantly metabolized by CYP3A4 to a catechol metabolite.

How it leaves the body

Tadalafil is excreted predominantly as metabolites, mainly in the feces (approximately 61% of the dose) and to a lesser extent in the urine (approximately 36% of the dose).

With food

The rate and extent of absorption of tadalafil are not influenced by food; thus tadalafil tablets may be taken with or without food.

Quoted from the prescribing label, sections “Mechanism of Action” and “Pharmacokinetics”. DailyMed · 2026-06-24

Safety of the active substance

From the US prescribing label for the same active substance (Tadalafil). It describes the substance, not this exact product.

Must not be used by
  • Administration of tadalafil tablets to patients using any form of organic nitrate is contraindicated.
  • Tadalafil was shown to potentiate the hypotensive effect of nitrates ( 4.1 ).
  • History of known serious hypersensitivity reaction to tadalafil or ADCIRCA ® ( 4.2 ).
  • Administration with guanylate cyclase (GC) stimulators, such as riociguat ( 4.3 ). 4.1 Nitrates Administration of tadalafil tablets to patients who are using any form of organic nitrate, either regularly and/or intermittently, is contraindicated.
Most common side effects

Most common adverse reactions (≥2%) include headache, dyspepsia, back pain, myalgia, nasal congestion, flushing, and pain in limb ( 6.1 ).

Quoted from the US prescribing label for the same active substance. Your own pack’s leaflet is the authority for your product. DailyMed

Same active substance, strength and form in other countries

Matched on active substance, strength and kind of form only. This is not a statement that the products are equivalent or interchangeable: other ingredients, release and approved uses can differ — ask a pharmacist before swapping.

Medicine passport: one printable page to show a pharmacist abroad

European UnionNo exact match for this strength and form

Details

Made byQuallent Pharmaceuticals Health LLC
Active substanceTadalafil
Used inUrinary and reproductive system, hormones
Strength5 mg
FormTablet
RouteOral
Packs500 TABLET in 1 BOTTLE
NDC82009-077

Source: NDC Directory · 2026-09-13 · not reviewed by a clinician

Source: US Food and Drug Administration, NDC Directory. Reuse terms: US government work (FDA).

Other strengths and forms

180 products are sold under this name. Grouped by form; a number on a strength means several companies make it.

Same active substance

These contain the same substance. That does not mean one can replace another — ask a pharmacist.