Lawmakers say it is an effort to stop people from abusing the medicine, commonly referred to as "robotripping."
The term "robotripping" comes from Robitussin, a common over-the-counter cough medicine. The high one experiences comes from ingesting large doses of dextromethorphan, usually seen as a DM on the outside of the bottle.
According to medical experts, when used in prescribed doses, the medicine is usually safe. But in large doses, and mixed with things like caffeine, energy drinks or even drugs to treat ADHD, it can be lethal. Some medical experts even say using more than the prescribed dose is like playing with fire.
The new law limits the amount of bottles you can buy and restricts their sale to anyone under 18.