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N02A - OPIOIDS
Hierarchy:
N - NERVOUS SYSTEM
>
N02 - ANALGESICS
Level 4 Subgroups (9)
N02AA - Natural opium alkaloids
N02AB - Phenylpiperidine derivatives
N02AC - Diphenylpropylamine derivatives
N02AD - Benzomorphan derivatives
N02AE - Oripavine derivatives
N02AF - Morphinan derivatives
N02AG - Opioids in combination with antispasmodics
N02AJ - Opioids in combination with non-opioid analgesics
N02AX - Other opioids