Am.  Jour.  Pharm.  ) 
October,  1903.  j 
Syrup  of  Calcium  Lactophosphate. 
463 
of  the  syrup,  the  same  quantities  of  the  active  ingredients  are  taken 
as  in  the  official  process,  but  manipulation  is  slightly  different. 
Mix  the  lactic  acid  with  100  c.c.  water  in  an  evaporating  dish,  and 
add  the  calcium  carbonate  gradually,  so  as  to  avoid  causing  too 
violent  effervescence. 
When  solution  has  been  effected,  place  the  dish  upon  the  water 
bath  and  warm  gently.  Then  add  the  phosphoric  acid,  stirring  con- 
stantly. This  manipulation  will  result  in  the  production  of  a  limpid, 
-colorless  solution  unaccompanied  by  the  first  precipitation,  which 
takes  place  when  the  operation  is  carried  out  according  to  the  official 
directions. 
By  making  up  the  volume  of  this  solution  to  250  c.c.  and  filtering, 
a  concentrated  permanent  preparation  is  afforded,  which  may  be 
held  in  readiness  for  preparing  the  official  syrup  at  any  time  by  the 
following  procedure: 
In  the  author's  estimation  a  much  more  satisfactory  preparation 
is  afforded  by  either  substituting  plain  syrup,  or  syrup  of  orange 
flowers,  for  the  syrup  and  orange-flower  water  in  the  foregoing 
directions.  When  the  plain  syrup  is  used  in  the  proportions  of  3 
volumes  of  syrup  to  1  volume  of  cone.  sol.  calcium  lactophos.,  a 
pleasant,  acidulous,  permanent  preparation  results. 
When  syrup  of  orange  flowers  is  used  in  like  proportions,  a  prepa- 
ration which  is  much  more  pleasant  is  afforded,  but  which  in  time 
becomes  somewhat  deteriorated,  probably  by  the  action  of  the  acid 
upon  the  orange-flower  water. 
At  any  rate,  by  this  method  of  using  the  concentrated  solution  it 
is  possible  to  send  out  a  fresh  preparation  upon  five  minutes'  notice, 
which  is  a  very  desirable  improvement. 
Take  of 
C&lcium  carbonate 
Lactic  acid  .  .  . 
Phosphoric  acid  . 
Water,  q.  s.  ... 
25  grammes. 
60  c.c. 
36  " 
250  " 
Take  of 
Cone,  solution  calc.  lactophos 
Orange-flower  water  .... 
Syrup   
250  c.c 
25  " 
725  " 
