2-Amino-6-purinethiol

Category

2-Amino-6-purinethiol




Useful info

2-Amino-6-purinethiol Brand names, 2-Amino-6-purinethiol Analogs

2-Amino-6-purinethiol Brand Names Mixture

  • No information avaliable

    • 2-Amino-6-purinethiol Chemical_Formula

    C5H5N5S

    2-Amino-6-purinethiol RX_link

    http://www.rxlist.com/cgi/generic2/thioguanine.htm

    2-Amino-6-purinethiol fda sheet

    2-Amino-6-purinethiol FDA

    2-Amino-6-purinethiol msds (material safety sheet)

    2-Amino-6-purinethiol MSDS

    2-Amino-6-purinethiol Synthesis Reference

    Elion et al.; J.Amer.Chem.Soc.; 81;1898,1901 (1959)

    2-Amino-6-purinethiol Molecular Weight

    167.193 g/mol

    2-Amino-6-purinethiol Melting Point

    >360 oC

    2-Amino-6-purinethiol H2O Solubility

    36.3 mg/mL

    2-Amino-6-purinethiol State

    Solid

    2-Amino-6-purinethiol LogP

    0.086

    2-Amino-6-purinethiol Dosage Forms

    Oral tablets

    2-Amino-6-purinethiol Indication

    For remission induction and remission consolidation treatment of acute nonlymphocytic leukemias.

    2-Amino-6-purinethiol Pharmacology

    Thioguanine is an antineoplastic anti-metabolite used in the treatment of several forms of leukemia including acute nonlymphocytic leukemia. Anti-metabolites masquerade as purine or pyrimidine - which become the building blocks of DNA. They prevent these substances becoming incorporated in to DNA during the "S" phase (of the cell cycle), stopping normal development and division. Thioguanine was first synthesized and entered into clinical trial more than 30 years ago. It is a 6-thiopurine analogue of the naturally occurring purine bases hypoxanthine and guanine. Intracellular activation results in incorporation into DNA as a false purine base. An additional cytotoxic effect is related to its incorporation into RNA. Thioguanine is cross-resistant with mercaptopurine. Cytotoxicity is cell cycle phase-specific (S-phase).

    2-Amino-6-purinethiol Absorption

    Absorption of an oral dose is incomplete and variable, averaging approximately 30% of the administered dose (range: 14% to 46%)

    2-Amino-6-purinethiol Toxicity

    Oral, mouse: LD50 = 160 mg/kg. Symptoms of overdose include nausea, vomiting, malaise, hypotension, and diaphoresis.

    2-Amino-6-purinethiol Patient Information

    PATIENT INFORMATION

    Patients should be informed that the major toxicities of thioguanine are related to
    myelosuppression, hepatotoxicity, and gastrointestinal toxicity. Patients should never
    be allowed to take the drug without medical supervision and should be advised to consult
    their physician if they experience fever, sore throat, jaundice, nausea, vomiting, signs
    of local infection, bleeding from any site, or symptoms suggestive of anemia. Women of
    childbearing potential should be advised to avoid becoming pregnant.

    2-Amino-6-purinethiol Organisms Affected

    Humans and other mammals