Hi there
I hope this will help. After the 14 days the potency goes down. So I guess it is up to you. Does it have a lot left??? Or is there only a couple of doses left??? I don't think you would want to use it for a long time, because of the potency going down.
I am sorry I don't know of anywhere you can get antibiotics with out a script.
I hope I helped you a little.
Val