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The antidote for morphine, and most other opioids, is a medication called naloxone, or Narcan. It blocks opioid receptors, blocking the effect of morphine, heroin, or any other opiate medication. The effects of naloxone are short-lived, however, and may require further dosing to keep the patient from slipping back into a coma. If a person has taken an overdose of morphine, they are usually given an opiate antagonist, such as Narcan. This acts very quickly in reversing the effects of the morphine, or any other narcotic. Narcan is also sometimes used in drug rehab; it helps the body to go through the withdrawal symptoms more quickly. But this must be done under the supervison of a doctor on an in-patient basis (sometimes while the patient is under general anesthesia), since sudden withdrawal of narcotics can cause serious or even fatal reactions.

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16y ago

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