It should be sealed. If they took out any of the pills previously, they should have put your quantity in an official drug store bottle, with a new sticker. If that unsealed bottle contains the full amount indicated on the original bottle you have, then I'd call the pharmacy. The bad thing is that some (maybe not all) pharmacies won't take back the meds after a customer leaves the premises. For that reason, I always scruitinize them before leaving. They like to shove the bottles in a bag lickity split, though.