Patented in 1923, hydrocodone is an opioid used to treat severe pain caused by an injury or surgery. It is also used as a cough suppressant in adults. In addition, this medication may also be prescribed to treat other conditions, including pain from cancer, and arthritis. Hydrocodone is believed to work by activating opioid receptors, mainly in the brain and spinal cord. When it comes to treating chronic cough, Hydrocodone is often combined with antihistamines to create syrup that suppresses the cough reflex and provides relief from pain associated with coughing. As for this medicine’s side effects, they include dizziness, sleepiness, nausea, and constipation. Hydrocodone also has other side effects that are deemed serious such as abuse, low blood pressure, seizures, respiratory depression, and serotonin syndrome. Besides, rapidly decreasing the dose may result in opioid withdrawal. Bear in mind that the use of Hydrocodon during pregnancy or breastfeeding is generally not recommended.