I spoke to my vet this morning and they said to definately NOT use it since it was out at around 78 degrees F for 14 hours. (I keep my house at 78 during the day, cooler when we're here... digital thermastat.)

They are open until 8pm on Thursday though. So I will go on Thursday evening and pick up a new bottle. We have rescheduled Charlies follow up visit from this Saturday to the following Saturday so he's had a full week on the medication.

Hopefully Charlie does make a huge improvement!