Drug Name Alli

Sulfonamide diuretics compete with urate for the tubular organic anion secretory system. These agents act in the distal portion of the distal tubule and the proximal part of the collecting ducts where Na+ is reabsorbed in exchange for K+ or H+. Their diuretic effectiveness is relatively minor.
At present, only ?- blockers and diuretics have undergone large-scale clinical trials, which have shown that reduction in blood pressure is associated with decreased morbidity and mortality due to stroke and congestive heart failure. In multidrug therapy, it is necessary to consider which agents rationally complement each other.

 

Clearance rates of these substances can be used to determine renal or hepatic blood flow. As the chief organ of drug biotransformation, the liver is richly supplied with blood, of which 1100 mL is received each minute from the intestines through the portal vein and 350 mL through the hepatic artery, comprising nearly 1/3 of cardiac output.
The mechanism of action is known for some of them: pyrimethamine and dapsone inhibit dihydrofolate reductase, as does chlorguanide (proguanil) via its active metabolite. The sulfonamide sulfadoxine inhibits synthesis of dihydrofolic acid.