SUBJECT: Mefloquine HCl
MESSAGE: My daughter's pediatrician prescribed 1/4 of a 250mg tablet once a week. Based on insurance I could only get 4 tablet for a 30 day supply. The pediatrician thought the remaining 3/4 of the tablet must be discarded once it was exposed to air, but the pharmacist had not heard this. I read through your literature on the drug and also did not see this warning. Can we use the remaining 3/4 of the tablet on additional weeks as long as it is kept at the correct storing specifications?
Thank you for your time!

Summarized question: What are the storage requirements for Mefloquine HCL?