"Take is Elestrin for instance. It's a treatment for menopause symptoms - a market estimated to be worth anywhere from $2 billion to $8 billion per year. The wide variances in its size underscore the idea that many women don't treat it, but would if the right product was available. Elestrin is already FDA-approved.
BioSante is also developing Bio T-Gel for male hypogonadism, and The Pill-Plus contraceptive. The latter will be a $17 billion market within three years."
Link is there for a read, but the momo hasn't even started. For instance, the pill somx was doing was only estimated at $3 billion