What alternatives can I use for erectile dysfunction? If you have erection problems, tadalafil works by temporarily increasing blood flow to the penis when you get sexually excited. If you are thinking about using tadalafil please discuss it with your doctor. This allows the smooth muscles in the penis to relax and fill with blood. It’s available in 25 mg, 50 mg, and mg tablets and lasts up to 18 hours. Benign prostatic hypertrophy is a condition in which the prostate gland becomes enlarged, obstructing the free flow of urine. · Drugs including Viagra and Cialis lead to an average improvement of 4 to 8 points on the scale used by researchers and clinicians. which can include heartburn, . If the doctor prescribes it, they can visit a pharmacy and present the voucher to get free Cialis trial samples. Once they take the drug, the man must fill out the Cialis Promise Card, generate a copy of the pharmacy receipt, and send the two documents to Cialis Promise; P.O Box ; Trenton, NJ 5 mg 10 mg 20 mg The cost for these different strengths depends on whether you have insurance, your individual plan coverage, and your treatment plan. For .