In general, Cialis tadalafil is OK to use with most blood pressure medication and there are no serious interactions. A well known side effect of erectile dysfunction drugs such as Cialis is possible hypotension, or too low blood pressure. In addition to alpha blockers, we commonly hear that Cialis should not be taken with nitrates, as the combination could result in Sildenafil Citrate significant and potentially serious drop in blood pressure. There have been reports of severe side effects such as hypotension, dizziness and heart attack in those using Cialis while taking a nitrate or are Buy Cheap Viagra nitrate therapy, Viagra 50mg. Aside from treatment for Erection Problem, most other blood pressure medications classes do not represent a significant risk. The risk of hypotension with the use of Cialis and alpha blockers is far greater when compared to other blood pressure medications. If you are already on Cialis and your doctor wants you to begin therapy on alpha blockers, they are recommended to be started at the lowest possible dose and tapered to appropriate effect. Common alpha blocker medications include:. So, to reiterate, most blood pressure medications are considered to be safe to use in combination with Cialis. The main medication classes of concern are alpha blockers and nitrates. Nitrates are contraindicated in those taking Cialis while alpha blockers need to be used with caution.