Description     Claims  

WO0170198A   [0003] 
US3994974A   [0027] 
US5684199A   [0027] 
WO9210229A   [0031]  [0042]  [0044] 

The Pharmacological Basis of Therapeutics   [0007] 
Remington's Pharmaceutical Sciences   [0024] 
Remington. The Science and Practice of Pharmacy   [0024]