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PHARMACY  OF  THE  CINCHONAS. 
This  is  a  very  elegant  preparation,  and  has  been  effectively 
used  for  some  months,  increasing  in  favor  with  those  physicians 
who  judiciously  apply  it.  It  is  really  but  an  improved  formula 
and  about  three  times  the  strength  in  the  other  ingredients,  and 
its  therapeutic  applications  are,  of  course,  the  same  as  those  of 
the  officinal  tincture. 
The  formula  for  which  the  last  one  is  now  proposed  as  an  im- 
proved substitute  has  been  longer  in  use,  and  has  proved,  in  the 
hands  of  others  to  whom  it  has  been  given,  an  excellent  and 
convenient  preparation.  It  only  differs  from  the  last  in  being 
more  accurately  a  concentrated  form  of  the  compound  tincture. 
It  is  called 
Compound  Fluid  Extract  of  Red  Cinchona, 
and  prepared  as  follows  : — 
Take  of  Red  Cinchona,  in  fine  powder,  sixteen  troyounces. 
Glycerin,  eight  fluidounces,  or  nine  troyounces  and 
two  hundred  and  eighty  grains. 
Compound  Fluid  Extract  of  Bitter  Orange  Peel,  a 
pint. 
Alcohol,  six  pints  and  ten  fluidounces. 
The  management  is  precisely  the  same  as  for  Extractum  Cin- 
chona Fluidum,  (see  page  515,)  until  one  pint  of  the  simple  ex- 
tract is  obtained.  This  is  then  mixed  with  the  pint  of  Com- 
pound Fluid  Extract  of  Bitter  Orange  Peel,  (which  see  farther 
on,)  making  two  pints  of  the  finished  preparation.  Except  that 
the  Red  Saunders  is  omitted  as  being  worse  than  useless,  and 
the  Glycerin  added  to  make  a  more  perfect  solution,  and  pre- 
vent the  precipitation  of  the  Cincho-tannates,  this  is  the  exact 
counterpart  of  the  officinal  Compound  Tincture  of  Cinchona,  or 
Huxham's  Tincture,  only  that,  from  its  being  five  times  the 
strength,  and  less  liable  to  precipitate,  it  is  considered  a  much 
better  and  more  economical  preparation,  while  it  is  appropriate  to 
the  same  uses.  Each  minim,  of  course,  represents  half  a  grain  of 
Cinchona  and  half  a  grain  of  Aromatics,  and  the  dose  is  from 
twenty  minims  to  two  teaspoonfuls,  according  to  the  indications 
to  be  fulfilled  by  its  use.  Like  the  other  preparations,  it  should 
be  given  in  a  little  wine  or  whisky,  just  before  meals. 
