CP6 is found in 9 entries
  •   Chemical Component Summary   Hide
    Identifiers 5-(4-chlorophenyl)-6-ethylpyrimidine-2,4-diamine
    Formula C12 H13 Cl N4
    Molecular Weight 248.71 g/mol
    Type non-polymer
    Isomeric SMILES
  •   Drug Info: DrugBank Hide
    DrugBank ID DB00205   (Stereoisomeric match)
    Name Pyrimethamine
    Groups approved
    Description One of the folic acid antagonists that is used as an antimalarial or with a sulfonamide to treat toxoplasmosis. [PubChem]
    • CD
    • Chloridin
    • Chloridine
    • Chloridyn
    • Diaminopyritamin
    • Ethylpyrimidine
    • Pirimetamin
    • Pirimetamina
    • Primethamine
    • Pyremethamine
    • Pyrimethamin
    • Pyrimethamine Hcl
    Brand names
    • Darachlor
    • Daraclor
    • Darapram
    • Daraprim
    • Daraprime
    • Disulone
    • Erbaprelina
    • Fansidar
    • Khloridin
    • Malacid
    • Malocid
    • Malocide
    • Maloprim
    • Pirimecidan
    • Tindurin
    • Tinduring
    Affected organism Plasmodium
    Indication For the treatment of toxoplasmosis and acute malaria; For the prevention of malaria in areas non-resistant to pyrimethamine
    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.
    Mechanism of action Pyrimethamine inhibits the dihydrofolate reductase of plasmodia and thereby blocks the biosynthesis of purines and pyrimidines, which are essential for DNA synthesis and cell multiplication. This leads to failure of nuclear division at the time of schizont formation in erythrocytes and liver.
    Route of administration Oral
    • Antiprotozoals
    • Antimalarials
    • Folic Acid Antagonists
    • Antiprotozoal Agents
    ATC-Code P01BD01
    AHFS-Code 08:30.08
    CAS number 58-14-0
    Name Sequence search Pharmacological action Actions
    Dihydrofolate reductase   Search  yes inhibitor
    Bifunctional dihydrofolate reductase-thymidylate synthase   Search  yes inhibitor
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