Many analysts and doctors predict that the dearth of effective painkillers and the growing ranks of baby boomers suffering from aching joints will drive growth in the market.

The drug is a safe and effective painkiller when used as an anaesthetic but can be lethal in capsule or tablet form.

Father Tom spoke reassuringly to his patient: "I have antibiotic powder, capsules of various penicillin derivatives, but no effective painkiller.

For centuries, opium and its derivatives have been considered a double-edged sword - the most effective painkiller on earth and also the most addictive substance.

Heroin, a scourge of America's inner cities, is also an extremely effective painkiller that many physicians believe could help desperately ill cancer patients.

Scientists report that the venomous black mamba produces a highly effective natural painkiller.

But, he said, the early results seem highly promising, especially when combined with knowledge of brain chemistry gained during the 1980's and the availability of more effective painkillers.

Opioids like morphine, codeine, and opium are effective painkillers, but they also have adverse effects, including addiction, nausea, and constipation.

Finding it would help us understand pain initiation, and could thus help in the development of more effective and specific painkillers.

There were effective painkillers in the first aid kit, but he was afraid they would knock him out.