Can you combine erection injections with other erectile dysfunction treatments?

Generally speaking, no. Men who plan to take an injection to treat erectile dysfunction should not take Viagra, Levitra, Cialis, or other as-needed drugs within 24 hours of the injection. The only exception is for men who take daily Cialis therapy. These men take 2.5 mg or 5 mg of Cialis on a daily basis, either as a long-term treatment for erectile dysfunction, or to treat both erection problems and benign prostate enlargement. Under the supervision of a physician, men on daily Cialis therapy can continue to take their daily medication in addition to using injection therapy.