New York became the third state to ban ephedra, an over-the-counter herbal supplement linked to scores of deaths.
The law, signed by Gov. George E. Pataki, includes a fine of up to $500 for each sale of the supplement. Ephedra's prescription sales are not affected. The law takes effect immediately.
Manufacturers of ephedra face lawsuits and a possible ban by the Food and Drug Administration. Illinois banned the substance, and California Gov. Gray Davis signed a law last month that will ban ephedra sales beginning in January.