The benefits of marijuana as a medical remedy have been known for over 5,000 years. Marijuana usage began to decline with the introduction of alternative drugs in the 20th century.  Injectable opiates and synthetic drugs eventually replaced marijuana since the results from these drugs were consistent. Also, it was easier to administer them in dosages. Despite the fact that marijuana has been rendered illegal in many states across the U.S., it is still used for recreational and medical purposes. The Drug Enforcement Agency (DEA) classified marijuana as a Schedule I drug along with harder drugs

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