Marijuana is considered a controlled substance by the Food and Drug Administration and has not been approved as safe or efficient, and they classify it as having no medical benefit, on par with drugs such as heroin, cocaine, and LSD. Of note, not a single death from a marijuana overdose has ever been reported, and there is no significant evidence that occasional use leads to long-term health problems. The effects of long-term, heavy marijuana use are still being studied. While there are risks to using every drug or medicine, marijuana compares much more favorably to the widely available drugs alcohol or tobacco that both show a much worse side effect profiles, higher addiction potentials, and negative life impact.