What the hell is brown sugar?

“There are various types of addictions observed these days such as consuming drugs, brown sugar, anti-depression and sleeping pills and cough syrups. However, alcohol still tops the list as 80 per cent of total addicts are alcoholics.”

This is from India, but I'm sure it speaks over the many populations of addicts. Alcohol is legal and condoned, as well is tobacco. It's easy to get your hands on both, and people think nothing of it. Except of course in America, where they've banned smoking most places like restaurants, bars, and in California, pretty much anywhere. They're trying to ban smoking in apartment buildings. Next it'll be in traffic jams. I know smoking is bad for you, and so is second hand smoke, but come on. If people want to ruin their lungs, that's their personal choice. You can't keep making up rules just to get people to quit smoking.

But what the hell is brown sugar? Perhaps that's the Indian slang for heroin?