Scientists are developing a new "super Viagra" cream that promises to act faster than the popular erectile dysfunction drug — and without the side effects.

PerthNow reports the lotion is said to produce almost instant results, unlike anti-impotence tablets which can take 30 minutes to an hour before taking effect.

Viagra and other drugs in the same class do this by blocking the effects of an enzyme called phosphodiesterase type 5.

But these so-called phosphodiesterase inhibitors are known to cause side effects ranging from headaches to vision problems and more serious complications.

Now a team of researchers from the Albert Einstein College of Medicine at Yeshiva University, New York, have developed a way to deliver the drugs straight to the affected area using nanoparticles, which are naked to the human eye, contained in a lotion.

In tests, performed on rats, the new delivery method has proven successful in nine out of 10 cases.

Click here to read more at news.com.au.