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2 mg

The previous answer is incorrect. Fentanyl can be fatal in doses less than a milligram, and is usually measured and dispensed on the microgram scale. Depending on opiate tolerance and body mass, fentanyl can cause respiratory depression on a wide scale of doses. For this reason, it is an extremely dangerous drug, and is restricted to hospital use in sedation and pain management, and in rare outpatient circumstances where patients have become too opiate competent/tolerant, and require fentanyl, usually delivered as a lozenge, such as Actiq, or in a patch, such as Duragesic.

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Anya King

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3y ago

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