We believe you are asking about GM medicines and their effects. Please see below for some previous responses on similar topics.
This article from Richard Green, a former Biopharmaceutical Manufacturing Manager, gives an overview of the history of GMOs in food and medicine.
“In medicine, genetic engineering (GE) is used to make biopharmaceutical drugs. Various organisms are engineered for use as factories to produce the drug product. Bacteria are the preferred option, as they are the easiest to grow and scale-up for production, but depending on the complexity of the drug’s molecular structure, other organisms such as yeasts, mammalian cells, etc., can also be used to express the drug product. The first GE drug approved for use was insulin. By the year 2000, there were over 100 GE drugs on the market.”
Additionally, Michiel van Lookeren Campagne, Head of Biology Research at Syngenta answered a question that addresses the medicine, insulin.
“Insulin can be produced in plants; however the advantages of producing human insulin in plants over the current process are not compelling enough economically to make a switch in the production system of insulin.
There are a couple of small companies, such as Medicago, making pharmaceutical protein drugs in plants. These are usually based on the fact that plant-based production is much faster and scalable than fermentation-based production systems. Therefore, vaccines or treatments for pandemic diseases are usually in their scope.”
Read his full response here.