First - Thank You for laying out such a GREAT Plan for building an Emergency Preparedness kit.
Situation: Adding a weeks worth of Medication to the kit. If a persons pulls a weeks worth of med's from their bottles, this could lead them to come up short, and need to refill before the actual refill date. The pharmacy's may not go along with this need.
Solution: At Least once a year - Having some sort of authorization to get a weeks worth of medication from a Pharmacy; if it would help, it could possibly be already sealed to be placed in the kit.