Cialis is known to contradict with the following medications:

Nitrates – Cialis is not recommended for patients using any form of organic nitrate, either regularly and/or intermittently. In clinical trials, Tadalafil was shown to potentiate the hypotensive effect of nitrates due to the combined effects of nitrates and tadalafil on the nitric oxide/cGMP pathway. This leads the blood pressure to drop to dangerous levels.

Alpha Blockers – Cialis is not recommended for patients taking any alpha-blockers because of the blood-pressure-lowering effect.

Hypersensitivity -Patients with a known hypersensitivity to tadalafil or any component of the tablet should not take it.



Patients with cardiovascular problems should avoid taking Cialis. There is a risk of cardiac arrest in patients for whom sexual activity is inadvisable. Similarly, Cialis is not recommended for patients suffering from cardiovascular diseases like:

  • patients with a myocardial infarction within the last 90 days
  • patients with unstable angina or angina occurring during sexual intercourse
  • patients with greater heart failure in the last 6 months
  • patients with uncontrolled arrhythmias, hypotension (<90/50 mm Hg), or uncontrolled hypertension (>170/100 mm Hg)
  • patients with a stroke within the last 6 months

In addition, patients with known hereditary degenerative retinal disorders, including retinitis pigmentosa.

Cialis Prolonged Erection

Patients who have an erection lasting greater than 4 hours, whether painful or not, should seek emergency medical attention.


Before you buy CIALIS, it is important to identify potential underlying causes, as well as treatment options for Erectile Dysfunction.

Cialis at cheapest price !!