Always consult your doctor before combining Cialis with other medications. This list isn’t exhaustive, but highlights common drug interactions:
Nitrates: Nitroglycerin, isosorbide mononitrate, and isosorbide dinitrate. Combining these with Cialis can cause a dangerous drop in blood pressure.
Alpha-blockers: Doxazosin, terazosin, tamsulosin. These drugs, often prescribed for high blood pressure or enlarged prostate, can enhance Cialis’s blood pressure-lowering effects, potentially leading to dizziness or fainting.
Guanylate cyclase stimulators: Riociguat. This medication treats pulmonary hypertension and should never be combined with Cialis due to the risk of severe hypotension.
HIV protease inhibitors: Ritonavir, indinavir, saquinavir. These medications can increase Cialis levels in your blood, potentially increasing side effects.
Azole antifungals: Ketoconazole, itraconazole. Similar to protease inhibitors, these can elevate Cialis blood levels.
Macrolide antibiotics: Erythromycin, clarithromycin. These can also increase Cialis concentrations in the blood.
Grapefruit juice: Avoid grapefruit juice while taking Cialis, as it can interfere with its metabolism and increase its concentration in your system.
This list is not exhaustive. Inform your doctor about all medications, supplements, and herbal remedies you use to prevent potentially harmful interactions. Your physician can assess your specific situation and determine appropriate treatment.
