Erectile dysfunction or ED or male impotence is a condition where men fail to obtain or sustain penile erection for successful completion of sexual intercourse. Penile erection is the result of a hydraulic effect of inflow and retention of blood in sponge like cavities in the penis. Erectile dysfunction is indicated when it is persistently difficult or impossible to obtain an erection despite sexual arousal. Till the arrival of FDA approved ED pills treatment of this condition was largely in the domain of folk medicine. The first such drug was sildenafil citrate, which was launched by Pfizer under the brand name Viagra. Since then two more drugs, tadalafil (Cialis) and vardenafil (Levitra) have also been approved by FDA.
Cialis was the second drug to be approved and is giving is giving tough competition to Viagra due to certain advantages that it enjoys over it. Although both drugs have the same mechanism of action Cialis has a longer half-life of 17.50 hours as compared to 4.5 to 5 hours of Viagra. Cialis is thus effective for 36 hours, the reason why it has earned the nickname of ‘The Weekend Pill’.
In as far as ED pills are concerned many people feel shy of asking for them at the community pharmacies. There are instances where elderly people living in far flung areas have difficulty in travelling long distances. Online pharmacies are a convenient source of ordering Cialis with a couple of clicks of the mouse and getting your requirement mailed to your doorstep.
Generico Cialis is also available now. A generic drug is a non branded version of the original drug. It contains the same active ingredient and can be used in the same way and in similar dose. The difference is only that generic drugs are not protected by a patent. Because a generic drug manufacturer does not spend money on research and development and advertisements they can afford to sell the drug cheap and still make a profit. While buying generic Cialis you are also sure of the quality because most generic manufacturers are also big names in the pharmaceutical industry.
Online pharmacies are just like your local drugstore and the primary difference is the way medicines are asked for and received. You place an order with an online pharmacy from the comfort of your home and it is delivered to you via mail, usually international mail since most online pharmacies are located outside USA. When an online pharmacy offers you generic Cialis it is just like a friendly salesperson at the community pharmacy who takes you aside and suggests a cheaper alternative to branded Cialis.
The price difference between branded and generic Cialis is phenomenal and may range between 50 to 80 percent. There are, however, certain conditions under which foreign drugs can be imported for personal use. You can legally buy branded or generic Cialis for personal use (up to 90 days’ supply) from a Canada pharmacy provided it is registered. Since when you purchase Cialis you are what actually getteing is a prescription drug you are required to fax or scan and mail your prescription. If you do not have one you can request the online pharmacy to write you one. They will ask you some questions regarding you medical history and a qualified professional will write you a prescription.