Are there potential Tadalafil (generic Cialis®) interactions with other medications?

Tadalafil (generic Cialis®)* may interact with other medications such as nitrates (often prescribed for chest pain), alpha-blockers like terazosin or doxazosin, HIV protease inhibitors, antifungal medications such as ketoconazole, macrolide antibiotics such as erythromycin, and other erectile dysfunction medications. Always consult your medical provider for safe medication use. Please tell your medical provider about any prescription or over-the-counter medications you are taking as Tadalafil (generic Cialis®)* may interact with other drugs.