Every drug has its specific storage conditions, which is mentioned in its container. if you have to protect drug from high temperature ( I dont Know which range of temp you are asking about) just place it in a dark box and place it in refrigerator but make sure about its label.
You can purchase thermos strips that react to and record the temperatures they are exposed to. This will at least let you know if your drugs have been exposed to excessive heat or cold.
It is best to follow the manufacturers' instructions concerning temperature controls for certain drugs. In addition some drugs require a cold chain to keep them safe, therefore using thermo-flasks is acceptable. The below links gives some information on encapsulation and hydrogels