Essex, an unincorporated community with a total area of 30.82 km² of which 22.16% is water, is located in Baltimore County. Although Essex is not one of the largest cities in the nation, its thousands of residents mean it could be home to a number of people experiencing opioid use disorder. As of 2010, it had a population of 39,262. People who wish to treat opioid dependency in this city may visit any Essex methadone clinic. Methadone clinics are specifically set up for the dispensing of methadone for medically assisted opioid use disorder. Methadone, like opioids, is a drug. The difference is that methadone has no negative effects if taken in compliance with the instructions from a medication-assisted treatment expert. To add to that, methadone undoes the negative physical and psychological effects caused by opioids. It reduces craving and relieves pains. Its effectiveness has been proved so much that it was included on the World Health Organization’s list of essential medications. Methadone should not be taken without the supervision of a health provider and it should not be shared between individuals. This is because misuse could be dangerous to health and health practitioners only dispense the exactly required dose at a time. All methadone clinics in Maryland are required to register with the Drug Enforcement Administration.