Five San Francisco teens were rushed to a hospital for overdosing on over-the-counter cough syrup. Experts say the teens likely were trying to get high on Coricidin, which is sometimes used as a hallucinogen.

Some suggest the abuse of cough syrup has been at least partly spurred by its popularity among such rappers as Lil Wayne, who sometimes rap about the substance and often drink it while performing. (Fox News)