• (British) IPA: /ˈɒl.tɹə.tɪv/, /ˈɒl.tə.ɹə.tɪv/
• (America) IPA: /ˈɔl.tɚˌaɪ.tɪv/, /ˈɔl.tɚ.ə.tɪv/

alterative (plural alteratives)

1. (medicine, now historical) A medicine or treatment which works by changing processes within the body, rather than by evacuating something etc. [from 14th c.]
   • 1624, Democritus Junior [pseudonym; Robert Burton], The Anatomy of Melancholy: […], 2nd edition, Oxford, Oxfordshire: Printed by John Lichfield and James Short, for Henry Cripps, OCLC 54573970 ↗, partition II, section 5, member 1, subsection v:

     Amongst this number of cordials and alteratives I do not find a more present remedy than a cup of wine or strong drink, if it be soberly and opportunely used.

alterative

1. Causing alteration. Specifically: Gradually changing, or tending to change, a morbid state of the functions into one of health. [from 15th c.]

• French: altérateur
• Italian: alterativo
• Portuguese: alterativo, alterante, alterador