<unk>  (Dihydrocodeinone) is an opioid used to treat pain and as a cough suppressant. It is taken by mouth. Typically it is dispensed as the combination acetaminophen/hydrocodone or ibuprofen/hydrocodone for pain severe enough to require an opioid and in combination with homatropine methylbromide to relieve cough. It is also available by itself in a long-acting form under the brand name Zohydro ER, among others, to treat severe pain of a prolonged duration.<unk>  is a controlled drug, in the United States a Schedule II Controlled Substance. Common side effects include dizziness, sleepiness, nausea, and constipation. Serious side effects may include low blood pressure, seizures, QT prolongation, respiratory depression, and serotonin syndrome. Rapidly decreasing the dose may result in opioid withdrawal. Use during pregnancy or breastfeeding is generally not recommended.<unk>  is believed to work by activating opioid receptors, mainly in the brain and spinal cord.<unk>  10 mg is equivalent to about 10 mg of morphine by mouth.<unk>  was patented in 1923, while the long-acting formulation was approved for medical use in the United States in 2013. It is most commonly prescribed in the United States, which consumed 99% of the worldwide supply as of 2010. In 2017, it was the 118th most commonly prescribed medication in the United States, with more than six million prescriptions.<unk>  is a semisynthetic opioid, converted from codeine or less often from thebaine. Production using genetically engineered yeasts have been developed but are not used commercially.
Hydrocodone
Oxycodone
Noroxycodone
Norhydrocodone
Tramadol
Nefazodone
Morphine
Tapentadol