Cialis will be available by prescription only. It may be taken with or without food. This increased blood flow can cause an erection. What alternatives can I use for erectile dysfunction? Tadalafil was found to have similar benefits for lower urinary tract symptoms as the usually prescribed tamsulosin. But, you should still see your doctor to discuss other health issues. · But on average, its effects start to lessen 2 to 3 hours after you take a dose. The typical dose for once-daily Cialis for ED is milligrams (mg) to 5 mg. When used as needed for ED, the usual. AdWith RexMD you’re saving time and money with our ED delivery. Get started now. Reliable E.D. meds prescribed by real doctors. Get your free & private online visit today. We have good news for you: generic Cialis, used to treat erectile dysfunction (ED)and enlarged prostates, just hit pharmacies. Prices for the generic, known as .