1.   Health advocates say nicotine reduction is the key to curbing addiction and thus reducing overall smoking rates.

2.   The measure may also cause other states to reform punitive drug laws that have failed to curb addiction or reduce drug-related crime.

3.   The scientists said they believe the drug has the potential to also curb addiction to substances such as nicotine, heroin and amphetamines.

4.   An American medical team has discovered an experimental drug which curbs cocaine addiction in rats and which could have applications for use in humans.