PolyethyleneGlycol (PEG) is a chemical widely used in medical field. It is the substrate for the production of certain drugs and the medium in the production of certain drugs. Polyethylene glycol involves hydrocarbon molecules of different sizes and physical properties, making it flexible for a wide range of applications.

Polyethylene glycol 3350 is one of the compounds used to treat constipation. It is powder rinsed with water. Once in the gut, the compound helps the stool absorb water from the environment, making it easier to pass out of the body. Like many laxatives, this compound is commonly used to treat occasional constipation, but is not suitable for long-term use. Some protein-based medicines are often mixed with polyethylene glycol. This combination allows the drugs to stay in the bloodstream for longer, increasing their effectiveness. This also prevents frequent medication, which helps reduce side effects. Protein drugs, which can be mixed with polyethylene glycol, include interferon, which is used to treat hepatitis, and fegastine, which promotes the repair of damaged nerves. Animal studies have confirmed that peg may play a role in preventing cancer. Studies on mice have found that peg helps protect against carcinogens that damage cells and cause cancer. In addition, the compound can penetrate the surrounding blood vessels and quickly reach the tumor. This property helps to image tumors in ways that normal imaging chemicals do not. Polyethylene glycol also has some use in the pharmaceutical industry, the application is different. This compound can be added to the drops to lubricate the eye, making the drops more easily tolerated by the surface of the eye. In addition, some capsules or oral drugs also use the compound as an inactive ingredient, forming the external structure of the drug. More solid polyethylene glycol is also used to make pills, topical ointments and lubricants, among other ingredients.