364      THERAPEUTIC  USES  OE  HYDROCYANATE  OF  MORPHIA. 
Saccharole  of  Hascliisein. 
* 
Take  of  Tincture  of  haschiscin  ^ss.  (Troy.) 
Sugar  in  powder  ^ij. 
Triturate  and  allow  the  alcohol  to  dissipate  by  evaporation,  and 
then  divide  into  eight  powders. 
This  saccharole  can  be  preserved  a  long  time ;  dissolved  in  a 
little  water,  the  resin  remains  suspended  and  can  be  taken 
readily. 
If  it  is  desirable  to  associate  an  aromatic,  an  essence  may  be 
used  to  make  the  tincture  of  haschiscin  ;  and  such  other  medi- 
cines as  the  physician  may  desire  to  associate,  as  calomel,  ipecac, 
sulphate  of  quinia,  etc.,  may  be  introduced.  These  mixtures 
can  be  converted  into  lozenges  or  pastilles  at  will. 
Alcoholic  Syrup  of  Haschiscin. 
R.  Haschiscin  grs.  iij 
Absolute  alcohol  gtt.  xx, 
Simple  syrup  fjj. 
Mix  sec.  art. 
Chloroformic  Syrup  of  Haschiscin. 
R.  Haschiscin  grs.  iij. 
Chloroform  gtt.  Xx. 
Simple  syrup  f§j. 
Mix  sec.  art. 
Jtep.  de  Pharm.,  Mars,  1856,  from  Journ.  de  Med.  de  Brux. 
ON  HYDEOCYANATE  OF  MORPHIA  AND  ITS  THERAPEUTIC  USES. 
By  M.  Vander  Corput. 
Hydrocyanate  of  morphia  may  be  prepared  directly,  by  heat- 
ing freshly  precipitated  morphia,  suspended  in  water  or  dissolved 
in  alcohol,  with  hydrocyanic  acid,  or  by  saturating  morphia 
moistened  with  water  with  vaporous  hydrocyanic  acid. 
It  can  also  be  obtained  by  double  decomposition  in  treating 
the  muriate,  sulphate  or  acetate  of  morphia  by  cyanide  of  potas- 
sium. The  resulting  salt  is  collected  on  a  filter,  washed  with 
distilled  water  and  dissolved  in  alcohol,  from  which  it  is  obtained 
in  beautiful  crystals  by  evaporation. 
Morphia,  as  is  the  case  with  all  the  other  vegetable  alkaloids 
containing  but  one  equivalent  of  nitrogen,  requires  but  one 
equivalent  of  cyanhydric  acid  for  forming  a  neutral  salt  with  the 
formula  M+HO,  HCy  ==  C34  H19  N,  06+HC2N+HO. 
Precipitated  hydrocyanate  of  morphia  presents  the  form  of  a 
crystalline  white  powder.    By  evaporation  from  its  alcoholic 
