Aoc?o°berr,i896!*m"}    Recent  Contributions  to  Pharmacy,  567 
IODOTANNIC  AND  IODOGALL1C  SYRUPS. 
Iodotannic  syrup,  which  is  a  rather  ancient  French  preparation, 
has  recently  been  revived,  and  is  now  frequently  prescribed. 
Professor  F.  Gay  {Repertoire  de  Pharmacie,  April,  1896),  of  Mont- 
pellier,  France,  has  recently  reviewed  the  older  formulas  of  Berthet 
(1836),  of  Perrens,  of  Guilliermond  (1854)  and  others,  most  of 
which  contained  rhatany,  and  proposed  the  following  : 
IODOTANNIC  SYRUP. 
Grammes. 
Iodine     1 
Alcohol,  900   12 
Tannin   ...  1 
Simple  syrup   ."  1,000 
Dissolve  the  iodine  in  the  alcohol  by  trituration  (or  take  13  grammes  of  re- 
cent tincture  of  iodine),  add  the  tannin,  then  the  syrup  and  heat  to  near  the 
boiling  point ;  filter  when  the  syrup  does  not  give  a  blue  color  with  solution  of 
starch. 
IODOTANNIC  SYRUP  WITH  RHATANY. 
Grammes. 
Iodine   .    1 
Alcohol,  900   12 
Syrup  of  rhatany  '  5^0 
Simple  syrup  '.'  .500 
Mix  as  in  the  previous  formula. 
IODOGAUJC  SYRUP. 
(Syrup  of  Iodoga.lic  Acid.) 
Grammes. 
Iodine   1 
Alcohol,  900   12 
Gallic  acid   1 
Simple  syrup  i,coo 
Mix  as  in  the  previous  formulas. 
The  following  is  the  formula  of  the  Societ'e  de  Pharmacie  de 
Paris : 
Grammes, 
Iodine  .   1 
Alcohol,  900  14 
Syrup  of  rhatany  985 
Dissolve  the  iodine  in  the  alcohol,  mix  with  the  syrup,  allow  to  stand  twenty- 
four  hours. 
The  older  formulas  differed  but  slightly  from  these,  but  con- 
tained more  tannin  and  iodine. 
It -was  found  that  iodine  effected  an  inversion  of  the  cane  sugar. 
