Used with drugs and chemicals for substances that share the same parent molecule or have similar electronic structure but differ by the addition or substitution of other atoms or molecules. It is used when the specific chemical heading is not available and no appropriate group heading exists.

Annotation

subheading only

pouze podheslo

Abbreviation

AA

DUI

Q000031 MeSH Browser

CUI

M0030233

History note

75; used with Category D1-7 & D9-26 1975-89; D2-7, D9, D11 & D14-23 1990 forward

Online note

search policy: Online Manual; use: main heading/AA or AA (SH) or SUBS APPLY AA