Glass does not allow moisture and other gases to pass through . It is fairly strong and the insulin may not leak out from the bottle . Glass tends to tolerate heat and light better . They do not degrade or melt under higher temperature and light conditions and protect the drug solution present in them . As glass can tolerate high temperature conditions better than plastics , heat sterilization can be utilized to destroy any micro-organism that is contaminating the bottle . They can also...











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