Cialis is also highly effective in reducing the symptoms of BPH. However, some states require a live video consultation. Cialis was also investigated in combination with finasteride, another BPH medication, in another trial. Read our editorial process. They have the same benefits and risks as their brand-name counterparts. Cialis tadalafil : This ED medication works with the same principle as Viagra, but lasts up to 36 hours.tadalafil or cialis Savings, Coupons and Information. | TADALAFIL (tah DA la fil) treats erectile dysfunction (ED). It works by increasing blood flow to the penis, which helps to maintain an erection. Tadalafil (Cialis) is taken by mouth either as needed before sexual activity or once daily for erectile dysfunction (ED).It’s also taken once daily to treat symptoms from an enlarged prostate (benign prostatic hyperplasia, or BPH).Tadalafil (Cialis) is available both as brand-name and generic tablets. Common side effects of this medication include . Prices vary greatly depending on which medication you’re prescribed. Generic versions cost much.