Malacid
Brand names,
Malacid
Analogs
Malacid
Brand Names Mixture
- Fansidar Tablets (Pyrimethamine + Sulfadoxine)
- Quinnoxine-S (Pyrimethamine + Sulfaquinoxaline)
- Sulfaquinoxaline-S Liq (Pyrimethamine + Sulfaquinoxaline)
Malacid
Chemical_Formula
C12H13ClN4
Malacid
RX_link
http://www.rxlist.com/cgi/generic2/pyrime.htm
Malacid
fda sheet
Malacid
msds (material safety sheet)
Malacid
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)
Malacid
Molecular Weight
248.711 g/mol
Malacid
Melting Point
233.5 oC
Malacid
H2O Solubility
121 mg/L
Malacid
State
Solid
Malacid
LogP
2.607
Malacid
Dosage Forms
Tablet
Malacid
Indication
For the treatment of toxoplasmosis and acute malaria; For the prevention of malaria in areas non-resistant to pyrimethamine
Malacid
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.
Malacid
Absorption
Well absorbed with peak levels occurring between 2 to 6 hours following administration
Malacid
side effects and Toxicity
No information avaliable
Malacid
Patient Information
Malacid
Organisms Affected
Plasmodium