Final answer:
Methadone prescription in heroin dependence is part of medication-assisted treatment, which helps manage withdrawal symptoms and reduce cravings.
Step-by-step explanation:
The strategy of prescribing methadone in heroin dependence is known as medication-assisted treatment. Methadone is a synthetic opioid that is less euphoric than heroin, and it helps in managing withdrawal symptoms and reducing cravings for the drug. Methadone clinics provide supervised administration of the medication to individuals struggling with opioid addiction, allowing them to gradually taper off the drug and maintain sobriety.