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  1. Generic: Tadalafil
    Equivalent Brand: Cialis
    30 Tablet/s
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Adcirca is a medication that contains the active ingredient tadalafil. It is primarily used to treat pulmonary arterial hypertension (PAH), a condition characterized by high blood pressure in the arteries of the lungs. Here's an overview of Adcirca:

1. Mechanism of Action:

  • Phosphodiesterase Type 5 (PDE5) Inhibitor: Adcirca belongs to a class of medications known as PDE5 inhibitors. It works by inhibiting the enzyme PDE5, leading to increased levels of cyclic guanosine monophosphate (cGMP) in the pulmonary arteries.
  • Vasodilation: Elevated cGMP levels result in relaxation of the smooth muscle cells in the pulmonary arteries, leading to vasodilation and improved blood flow.

2. Indications:

  • Pulmonary Arterial Hypertension (PAH): Adcirca is approved for the treatment of PAH to improve exercise ability and delay clinical worsening.

3. Dosage and Administration:

  • Oral Tablets: Adcirca is available in tablet form for oral administration.
  • Dosage: The typical recommended dose is 40 mg (two 20 mg tablets) once daily.
  • Administration: It can be taken with or without food, but consistent timing is advised.

4. Contraindications:

  • Nitrate Medications: Concomitant use with nitrate medications is contraindicated, as it can lead to a dangerous drop in blood pressure.
  • Hypersensitivity: Individuals with a known hypersensitivity to tadalafil or any component of the medication should avoid its use.

5. Side Effects:

  • Common Side Effects: Headache, flushing, nausea, back pain, and muscle aches are common side effects.
  • Serious Side Effects: Rare but serious side effects may include vision changes, sudden hearing loss, and priapism (prolonged erection).

6. Interactions:

  • Drug Interactions: Adcirca may interact with other medications, particularly those containing nitrates or alpha-blockers.
  • Grapefruit Juice: Consumption of grapefruit juice should be avoided, as it may increase tadalafil levels in the blood.

7. Monitoring and Precautions:

  • Blood Pressure Monitoring: Regular monitoring of blood pressure is recommended, especially during the initiation of therapy.
  • Cardiovascular Conditions: Caution is advised in individuals with pre-existing cardiovascular conditions.
  • Vision Changes: If sudden vision changes occur, seek medical attention promptly.

8. Pregnancy and Breastfeeding:

  • Pregnancy Category B: Adcirca is generally considered safe for use during pregnancy when the benefits outweigh the risks.
  • Breastfeeding: It is not known whether tadalafil passes into breast milk, so breastfeeding mothers should consult their healthcare providers.


Adcirca, containing tadalafil, is a medication approved for the treatment of pulmonary arterial hypertension. It works by dilating the pulmonary arteries and improving blood flow, ultimately enhancing exercise capacity in individuals with PAH. As with any medication, it is crucial to follow the prescribed dosage, be aware of potential side effects, and consult with healthcare professionals regarding any concerns or interactions with other medications.>