ALBANY A new state law cracks down on a hallucinogenic synthetic drug that authorities say has been deceptively labeled and sold as bath salts online and in convenience stores. Gov. Andrew Cuomo signed the legislation, saying the drugs have become an alternative to methamphetamine with “disastrous” results that include violent reactions and hospitalizations. They contain ingredients known as Mephedrone and MDPV. Sponsors say there are similar bans in Britain, Australia and Canada, as well as Florida, Louisiana and North Dakota. New York’s ban on selling, possessing, making or distributing the drug takes effect in 30 days. Cuomo also said July 15 he signed legislation banning the sale of shisha, a flavored tobacco, as well as pipes, water pipes, hookahs and cigarette rolling papers to minors.