Nasal version set to rival Viagra.(Erectile dysfunction)

Rivals for Viagra just keep on coming. You stick the latest version up your nose.

Palatin Technologies, of Princeton, New Jersey, has developed a nasally-administered drug called PT-141 that, it says, is as effective as Viagra and works for both men and women. Phase IIb studies have shown that the drug not only improves sexual performance, it increases confidence and reduces anxiety about sexual performance.

Viagra, the little blue pill that revolutionised the sex lives of millions of men, was launched in 1998. It now earns nearly $2bn a year for Pfizer. Already there are two rivals on the market--Cialis, produced by US company Eli Lilly, and Levitra, which …