Tramadol is a synthetic drug belonging to the class of opioid painkillers.

Tramadol - Chemical Structure

It is used in the treatment of painful states and is available in pharmaceutical formulations suitable for oral, rectal and parenteral administration.
Tramadol - in addition to interacting with opioid receptors - is also able to inhibit the reuptake of monoamines, such as norepinephrine and serotonin.

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