The spelling of "pulvis salia vichyani factitii effervescens" can be quite intimidating at first glance, but it is actually quite straightforward when broken down phonetically using IPA transcription. Starting with "pulvis", the "u" is pronounced as "ʌ" and the "i" is pronounced as "ɪ", while "salia" has the "a" pronounced as "æ" and the "i" as "ɪ". "Vichyani" has the "ch" sound as "ʃ" and the "y" as "j", while "factitii" has two "i's" which are pronounced as "i" or "ɪ". Lastly, "effervescens" has the letter "c" pronounced as "s" and the "s" pronounced as "z".
Effervescent artificial Vichy salt; sal vichyanum factitium (N.F.) mixed with saccharated sodium carbonate and sac charated tartaric acid; a heaping teaspoonful, gr. 90 (6.0), in a glass of water (36, or 200.0) represents a glass of Vichy (Grande Grille) water.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.