👉 The term "phenetidine" is commonly used in the pharmaceutical industry to describe a type of medication that is known as an opioid antagonist. It is primarily used for the treatment of pain and is also sometimes prescribed for other medical conditions such as chronic pain, nausea, and chemotherapy-induced vomiting. Phenetidine can be administered orally or injected and is typically taken in combination with other medications to achieve the desired therapeutic effect.