A Study of the Polyethylene Glycols as Vehicles for Intramuscular and Subcutaneous Injection

Tissue reactions at the site of subcutaneous and intramuscular injections of undiluted polyethylene glycol 300, propylene glycol, and peanut oil have been compared. The results obtained and described in this report indicate that a clinical trial of the polyethylene glycols as vehicles for certain drugs administered parenterally is justified.