APRACUR

Chlorphenamine is a potent antihistamine (H₁-antagonist). Antihistamines diminish or abolish the actions of histamine in the body by competitive reversible blockade of histamine H₁-receptor sites on tissues. Chlorphenamine also has anticholinergic activity.

Metamizole sodium is a pyrazolone derivative with analgesic, antipyretic and slight antiinflammatory and spasmolytic properties. It has the most potent analgesic effect of all the pyrazolone derivatives. As with other analgesics, its mechanism of action has not been elucidated in detail. It includes inhibition of prostaglandin synthesis (PGE1 and PGE2) and reversible inhibition of platelet aggregation. It inhibits cyclo-oxygenase and influences the effect of arachidonic acid.

Ascorbic acid, coupled with dehydroascorbic acid to which it is reversibly oxidised, has a variety of functions in cellular oxidation processes. Ascorbic acid is required in several important hydroxylations, including the conversion of proline to hydroxyproline and appears to have an important role in metal ion metabolism, including the gastrointestinal absorption of iron and its transport between plasma and storage organs.