Painkiller and Tempra

Painkiller noun - Something (as a drug) that relieves pain.

Tempra and painkiller are semantically related. In some cases you can replace term "Tempra" with "Painkiller", this nouns are similar.

Tempra noun - An analgesic for mild pain but not for inflammation; also used as an antipyretic; (Datril, Tylenol, Panadol, Phenaphen, Tempra, and Anacin III are trademarks of brands of acetaminophen tablets).

Painkiller and Tempra are semantically related. You can use "Painkiller" instead a noun "Tempra".