True or false: doctors will usually prescribe the same type of drug and dosage to every patient experiencing similar symptoms, regardless of the patients age, weight or medical history

Insulin is a peptide therapeutic used to manage type 1 diabetes, which affects more than 20 million people worldwide according to the international diabetes federation. a significant limitation to the broad distribution and use of insulin to treat type 1 diabetes is the fact that it must be administered by injection rather than orally. why is insulin administered by injection and not orally?