Which age groups have the highest prevalence of acute intermittent porphyria (AIP)?

Updated: Jul 08, 2020
  • Author: Thomas G DeLoughery, MD; Chief Editor: Emmanuel C Besa, MD  more...
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Most patients become symptomatic at age 18-40 years. Attacks occurring before puberty or after age 40 years are unusual unless a major provocation, such as new use of phenobarbital or estrogens, had occurred.

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