analgesic
any member of the group of drugs used to achieve analgesia, relief from pain
opioid
psychoactive chemical
narcotic
class of psychoactive drugs with numbing, sedative, and analgesic properties (distinct from the legal category)
Tiger Balm
trademark
compound analgesic
analgesics with multiple ingredients
anodyne
historical term for a pain-killing drug
Anadin
Painkiller from the UK
non-opioid analgesic
subclass of analgesic agents that typically do not bind to opioid receptors and are not addictive