Cialis can be a long acting medication and will stay active on the human body for up to 36 hrs. Both tadalafil and Cialis have been using to deal with erectile dysfunction and benign prostatic hyperplasia (BPH), and enhancement of the prostate gland which can cause difficulty urinating. Tadalafil is the generic type of the new Cialis. Both medications work from the body. While some patients are worried with how well standard tadalafil works, the FDA comes with a very rigorous process until they hit the marketplace for reviewing drugs. This procedure ensures that generic medications contain the exact identical ingredients as their brand name counterparts, so that there are very few differences between these. If you've never tried Cialis earlier, your doctor will likely start you about a minimal dose, like 2.5 mg or 5 mg. The 20 mg tablet is the strength and it is not preferred since it has got the potential to cause erections that last a day. Some medications can interact with nutrients found in grapefruits, and tadalafil is among them. The active ingredient in Cialis, tadalafil, is separated in the liver by a group of enzymes, but elements in grapefruits can change these enzymes process medications and cause a build up of tadalafil from your system. Eventually, this could increase your risk. cialis no prescription is just a kind of drug called a PDE5 inhibitor that is used to treat benign prostatic hyperplasia and erectile dysfunction. It will come in unique doses and can be obtained either for or daily as-needed erectile dysfunction. As men can afford tadalafil and treat their ED, it's likely that most will have questions. Generic tadalafil is more than 50% more affordable than Cialis.