Allowing drug makers to set expiry dates is a huge conflict of interest, they have massive incentives to expire their drugs as soon as possible. I'm surprised the FDA doesn't do the testing and set the dates itself.
The best solution is to require drug makers to replace expired drugs with new, for free. Given that manufacturing costs are typically a tiny fraction of sales price, this is not an expensive warranty. This will also give them incentive to make expiry dates as reasonable as possible.
The best solution is to require drug makers to replace expired drugs with new, for free. Given that manufacturing costs are typically a tiny fraction of sales price, this is not an expensive warranty. This will also give them incentive to make expiry dates as reasonable as possible.