re: How Long Does It Take For A Generic Drug To Be Made Once a Patent Expires?

I'm guessing here, but do pharma companies only have to patent the final molecule and not the process to get there? Therefore, even if a patent expires , the generic manufacturers still have to figure out how to create the molecule in question. I'd think that that would take some time.

If they find a new use (indication) for a molecule they can extend the patent. If it is a rare disease (orphan indication) they get bonus years added to brand exclusivity.

The manufacturers manipulate the laws. When the patent is near expiration, they re-apply for extensions citing they have found a new use, although they may have researched/proven it decades before.

Another example is Cialis. When the patent neared expiration the manufacturer applied for an extension when they found that low daily doses were effective for BPH.

Colcrys, Proair/Ventolin are examples of ancient meds that are now expensive because of regulations and manipulation.

Duexis is a one-tablet combination of $4 generics that insurers are charged $1200 a month for.

I could go on and on. It's disgusting. If you have a good pharmacist they will play copay whack-a-mole for you and help you and your physician avoid these traps.