Adcirca (Tadalafil Tablets) Drug Overview and Uses for Patients and Caregivers at RxList

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May 23, 2012

Adcirca

Pulmonary Hypertension »

What are pulmonary arteries?

The human body has two major sets of blood vessels that distribute blood from the heart to the body. One set pumps blood from the right heart to the lungs and the other from the left heart to the rest of the body.

The portion of the circulation that distributes oxygen-rich blood from the left side of the heart, throughout the body, is referred to as the systemic circulation.
The blood then returns from the body to the right side of the heart and passes through the lungs to replenish oxygen.
It then returns to the left side of the heart for another round through the systemic circulation.
The portion of the circulation that distributes the blood from the right side of the heart to the lungs is referred to as the pulmonary (lung) circulation.
The pulmonary arteries are the major blood vessels that carry blood from the rig...

Read the Pulmonary Hypertension article »

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ADCIRCA
(tadalafil) Tablets for Oral Administration

DRUG DESCRIPTION

ADCIRCA (tadalafil), an oral treatment for pulmonary arterial hypertension, is a selective inhibitor of cyclic guanosine monophosphate (cGMP)–specific phosphodiesterase type 5 (PDE5). Tadalafil has the empirical formula C₂₂H₁₉N₃O₄ representing a molecular weight of 389.41. The structural formula is:

ADCIRCA (tadalafil) Structural Formula Illustration

The chemical designation is pyrazino[1',2':1,6]pyrido[3,4–b]indole-1,4-dione, 6-(1,3-benzodioxol-5-yl)-2,3,6,7,12,12ahexahydro-2-methyl-, (6R,12aR)-. It is a crystalline solid that is practically insoluble in water and very slightly soluble in ethanol.

ADCIRCA (tadalafil tablets) is available as orange, film–coated, almond–shaped tablets for oral administration. Each tablet contains 20 mg of tadalafil and the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, hypromellose, iron oxide, lactose monohydrate, magnesium stearate, microcrystalline cellulose, sodium lauryl sulfate, talc, titanium dioxide, and triacetin.

Last reviewed on RxList: 4/4/2011
This monograph has been modified to include the generic and brand name in many instances.