Hydrocodone pills are a semi-synthetic opioid morphinan synthesized from codeine, one of the opioid alkaloids found in the opium poppy. it is a narcotic analgesic used orally as a cough suppressant, but also commonly Hydrocodone dosage is taken orally for relief of moderate to severe pain. those who take hydrocodone for recreational purposes report a sense of relaxation and euphoria, especially at higher doses.