Binding to opiate receptors in the CNS alters perception and response to pain which causes generalized CNS depression. Produces antipyresis and binds to opiate receptors in the CNS, altering perception and response to pain. Read more
[Controlled Substances] An analgesic combined opioid which blocks pain perception in the cerebral cortex by binding to opiate receptors in the CNS. Binding inhibits the flow of pain sensations and peripherally blocks pain impulses as synthesis of prostaglandins in the central nervous system is inhibited. Produces antipyresis and binds to opiate receptors in the CNS, altering perception and response to pain. Read more
[Controlled Substances] (Gravol®) is not a controlled substance but has been included here for reference purposes as it is often given with morphine to counteract the side effects of nausea and vomiting.
Dimenhydrinate is categorized in a class of drugs called antihistamines. It competes with histamine for H1-receptor sites on effector cells in the respiratory tract, gastrointestinal tract and blood vessels; blocks chemoreceptor trigger zones. Read more