DH, or Dihydrocodeine, is a prescription medication used to relieve moderate to severe pain. It belongs to a class of drugs known as opioids, which work by binding to specific receptors in the brain to reduce the perception of pain. DH is often prescribed for conditions such as post-surgical pain or chronic pain management. In addition to its pain-relieving properties, DH can also cause side effects, including drowsiness, constipation, and nausea. Due to its potential for addiction and misuse, it is classified as a controlled substance in many countries, requiring careful monitoring by healthcare providers.