Common ‘nitrate’ medications include: Isosorbide Mononitrate Isosorbide Dinitrate Nitroglycerine Aside from nitrates, most other blood pressure medications classes do not represent a significant risk. How does Cialis Tadalafil help treat erectile dysfunction? In trials of the drug, individuals taking Cialis saw a significant reduction in the frequency and urgency of urination and improved urine flow. What, if anything, seems to worsen your symptoms? Combined use could lead to additional lowering of blood pressure, possibly to unsafe levels. Nitrates come as tablets, sublingual under the tongue tablets, sprays, patches, pastes, and ointments. · Cialis (tadalafil) is prescribed to treat erectile dysfunction and symptoms of benign prostatic hyperplasia. It comes as a tablet that’s taken as needed or once per . Tadalafil (Cialis) is used to treat erectile dysfunction (ED, impotence; inability to get or keep an erection), and the symptoms of benign prostatic hyperplasia (BPH; an enlarged . Cialis and generic tadalafil are available with a prescription only. There is no OTC version, though there have been efforts in recent years to develop a .