Diazoxide (INN; brand name Proglycem[1]) is a potassium channel activator, which causes local relaxation in smooth muscle by increasing membrane permeability to potassium ions. This switches off voltage-gated calcium ion channels which inhibits the generation of an action potential.
Diazoxide is used as a vasodilator in the treatment of acute hypertension or malignant hypertension.[2]
Diazoxide also inhibits the secretion of insulin from the pancreas, thus it is used to counter hypoglycemia in disease states such as insulinoma (a tumor producing insulin)[3] or congenital hyperinsulinism.
[edit] Chemistry
Diazoxide can be prepared from dichloronitrobenzene:[4] 
[edit] References
- ^ Diazoxide, drugs.com
- ^ van Hamersvelt HW, Kloke HJ, de Jong DJ, Koene RA, Huysmans FT (August 1996). "Oedema formation with the vasodilators nifedipine and diazoxide: direct local effect or sodium retention?". J. Hypertens. 14 (8): 1041–5. PMID 8884561.
- ^ Huang Q, Bu S, Yu Y, et al. (January 2007). "Diazoxide prevents diabetes through inhibiting pancreatic beta-cells from apoptosis via Bcl-2/Bax rate and p38-beta mitogen-activated protein kinase". Endocrinology 148 (1): 81–91. doi:10.1210/en.2006-0738. PMID 17053028. http://endo.endojournals.org/cgi/pmidlookup?view=long&pmid=17053028.
- ^ Rubin, A. A.; Roth, F. E.; Winbury, M. M.; Topliss, J. G.; Sherlock, M. H.; Sperber, N.; Black, J. (1961). "New Class of Antihypertensive Agents". Science 133 (3470): 2067. doi:10.1126/science.133.3470.2067.
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