Intermezzo (zolpidem tartrate), which contains a bicarbonate-carbonate buffer, is available in spearmint-flavored sublingual tablets that are placed under the tongue and allowed to disintegrate completely before swallowing.
The product is available on prescription in retail pharmacies in the US, the company said.
Purdue Pharma president and CEO John Stewart said: "We are confident that healthcare professionals will find Intermezzo to be a valuable therapeutic option."