Opium use for pain relief has a long history. People started using opium around 3500 B.C. Through the ages, it’s been known as a universal cure-all. In 1803, morphine was isolated from opium, making ...

Overview: Morphine is used to treat short-term and long-term pain when other medicines are not enough. It keeps you from feeling pain. Common side effects include constipation, itching, dizziness, and ...