"Sirolin" is a word that may appear confusing due to its spelling. The IPA phonetic transcription reveals that the word is pronounced as /sɪrəʊlɪn/. The initial "si-" is pronounced as in "sit," followed by a long "o" sound, like in "go," and ending with a short "i" sound, as in "pin." The final syllable "-lin" is pronounced with a short "i" sound as in "bit," followed by a soft "n" sound. Therefore, the spelling of "sirolin" is due to its unique pronunciation.
Trade name of a 10 per cent. solution of thiocol in syrup, recommended in the treatment of tuberculosis in doses of 3 1-2 (15.0-30.0).
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.