Marijuana negates one instance of Crippled. Furthermore, it adds +5 DET for a Long Duration, but also applies a penalty of -2 DEX, -2 PER and -2 WIS.
Marijuana, another common name for Cannabis in a processed form, is made from the dried flower buds of the plant's "indica" subspecies. It has become synonymous with the Cold War's subcultures, especially the hippies, who consume it in vast quantities. Marijuana has a strong calming effect and is far less addictive than other narcotics, including more socially accepted alternatives like alcohol or tobacco.