It's hard to say if Viagra is a sure winner. Viagra is a wildcard.

Viagra beat them all to it.

My guess is, if you are a long term investor -- it's probably a good time to pounce on the stock.

There are a lot of asthma pills out there, but this may be the best one yet. It has a benign side-effect profile and high efficiency.

It looks like it's pretty much done.

Drug stocks are doing great today and they've been doing phenomenally well all year. The drug group is growing earnings in the mid-teens, double the S&P 500.