'Bath salts' blamed for spate of violence

Paranoia, hallucinations even violent attacks are all being attributed to a dangerous combination of chemicals.

They're often referred to as bath salts and are sold over the counter at gas stations and convenience stores around the US.

'Bath salts' is a common name given to a group of synthetic stimulants that are said to mimic the effects of illegal drugs like cocaine and LSD.

The National Institute on Drug Abuse in the US reports that bath salts contain various amphetamine-like chemicals, such as methylenedioxypyrovalerone (MPDV), mephedrone and pyrovalerone. Side effects can include chest pains, increased blood pressure, increased heart rate, agitation, hallucinations, extreme paranoia, and delusions.

It has been reported that poison centres around the US have seen a rise in calls related to bath salts.

Although more than 40 states have already banned the substances used in bath salts, some drug enforcement authorities say that that will only encourage new formulations and chemicals to flood the market.

CNN's Mary Snow has more.