Abstract:
New pharmaceutical compositions for oral use containing diclofenac preferably together with alkali metal bicarbonates in amounts of from about 20 to about 80 by weight with respect to diclofenac are described. These compositions are entirely palatable and free from any unpleasant taste or other, side effects; in particular, these formulations permit to obtain in human patients higher Cmax of the active principle and shorter Tmax together with a lower coefficient of variation.
Abstract:
New pharmaceutical compositions for oral use containing Diclofenac together with alkali metal bicarbonates in amounts of from 20 to 80 by weight with respect to Diclofenac are described. These compositions are entirely palatable and free from any unpleasant taste or other side effects; in particular, these formulations permit to obtain in human patients higher Cmax of the active principle and shorter Tmax together with a lower coefficient of variation.
Abstract:
To synthesize molecules with antiulcer action, specifically ranitidine, niperotidine and cimetidine, having the formula: ##STR1## wherein R.sub.1 is hydrogen or together with R.sub.2 represents the rest of a cycloaliphatic or heterocyclic optionally substituted ring with 5 or 6 carbon atoms, R.sub.2 represents H, alkyl, alkyl substituted with a simple or substituted aromatic ring or with a single or substituted heterocyclic ring, Ar represents a simple or substituted phenyl group, a simple or substituted heterocyclic aromatic group, N=1, 2, 3, 4, 5 or 6 and X represents CH--NO.sub.2, S, N--C.tbd.N, the compound (II) is prepared through the following process sequence: ##STR2## wherein Z=H, NO.sub.2, halogen and R.sub.3 =--(CH.sub.2).sub.n Ar, --(CH.sub.2).sub.n --SH, --(CH.sub.2).sub.n --S--S--(CH.sub.2).sub.n, --(CH.sub.2).sub.n --S--CH.sub.2 Ar Y being halogen.The urea of formula ##STR3## is converted in a first stage into the corresponding carbodiimide ##STR4## by reaction with triphenylphosphine and bromine in the presence of a strong base and in a second stage is obtained the desired compound by reaction with nitromethane or with a saline derivative of cynamide.
Abstract:
For the preparation of saline derivatives of mercaptoethansulfonic acid belonging to the class of the salts of alkali metals and of the salts with basic aminoacids, the sodium salt of the acid is obtained with a process comprising the reaction between sodium bromoethansulfonate with thiobenzoic acid and sodium bicarbonate and subsequent reaction of the resulting sodium benzoylethansulfonate with ammonia in water solution.
Abstract:
Ursodeoxycholic acid amides of the formula: ##STR1## wherein R is --CH.sub.2 --SO.sub.3 H or --COOH and R' is --H and --(CH.sub.2).sub.2 --CONH, --CH.sub.2 --CONH.sub.2, --(CH.sub.2).sub.2 --SCH.sub.3 or --CH.sub.2 --S--CH.sub.2 --CH.sub.2 --COOH, and their salts with inorganic and organic pharmaceutically active bases, are useful in the treatment of altered biligenetic functions and lithiasis or dyskinesia of the biliary ducts.
Abstract:
The water soluble derivatives of cephalexin, having general formula: ##STR1## wherein X represents an alkali metal or the organic nitrogen containing cation of a basic aminoacid, combine the typical antibiotic action of cephalexin with the water solubility and form essentially neutral, aqueous solutions. The process for the preparation of the above derivatives comprises a first step in which the methylol derivative of cephalexin is prepared and a second step in which the treatment with a suitable base is carried out.
Abstract:
For the treatment of cardiac hypertrophy, d-glucosamine salts of the 3',5'-adenosine monophosphoric cyclic acid (AMP-c) and of the dibutyl ester thereof are disclosed, these salts having a reduced acute toxicity and an improved activity on the mitochondria of hypertrophic heart with respect to the cyclic AMP acid alone or its dibutyl ester. The compounds in question are useful for the treatment of cardiac hypertrophy and alteration of the energetic muscular metabolism.