Pyrimethamin
Brand names,
Pyrimethamin
Analogs
Pyrimethamin
Brand Names Mixture
- Fansidar Tablets (Pyrimethamine + Sulfadoxine)
- Quinnoxine-S (Pyrimethamine + Sulfaquinoxaline)
- Sulfaquinoxaline-S Liq (Pyrimethamine + Sulfaquinoxaline)
Pyrimethamin
Chemical_Formula
C12H13ClN4
Pyrimethamin
RX_link
http://www.rxlist.com/cgi/generic2/pyrime.htm
Pyrimethamin
fda sheet
Pyrimethamin
msds (material safety sheet)
Pyrimethamin
Synthesis Reference
Russel, Hitchings, J. Am. Chem. Soc. 73, 3763 (1951); Hitchings et al., U.S. pats. 2,576,939; 2,579,259, and 2,602,794 (1951 and 1952 to Burroughs Wellcome); Jacob, U.S. pat 2,680,740 (1954 to Rhone-Poulenc)
Pyrimethamin
Molecular Weight
248.711 g/mol
Pyrimethamin
Melting Point
233.5 oC
Pyrimethamin
H2O Solubility
121 mg/L
Pyrimethamin
State
Solid
Pyrimethamin
LogP
2.607
Pyrimethamin
Dosage Forms
Tablet
Pyrimethamin
Indication
For the treatment of toxoplasmosis and acute malaria; For the prevention of malaria in areas non-resistant to pyrimethamine
Pyrimethamin
Pharmacology
Pyrimethamine is an antiparasitic compound commonly used as an adjunct in the treatment of uncomplicated, chloroquine resistant, P. falciparum malaria. Pyrimethamine is a folic acid antagonist and the rationale for its therapeutic action is based on the differential requirement between host and parasite for nucleic acid precursors involved in growth. This activity is highly selective against plasmodia and Toxoplasma gondii. Pyrimethamine possesses blood schizonticidal and some tissue schizonticidal activity against malaria parasites of humans. However, the 4-amino-quinoline compounds are more effective against the erythrocytic schizonts. It does not destroy gametocytes, but arrests sporogony in the mosquito. The action of pyrimethamine against Toxoplasma gondii is greatly enhanced when used in conjunction with sulfonamides.
Pyrimethamin
Absorption
Well absorbed with peak levels occurring between 2 to 6 hours following administration
Pyrimethamin
side effects and Toxicity
No information avaliable
Pyrimethamin
Patient Information
Pyrimethamin
Organisms Affected
Plasmodium