Contraindications
Hypersensitivity, pernicious anaemia and other megaloblastic anaemias secondary to vit B12-deficiency, intrathecal and intraventricular admin.
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Special Precautions
Undiagnosed megaloblastic anaemia, folate dependent tumors; pregnancy. Monitor calcium levels in patients receiving combined 5-Fluorouracil/Folinic acid treatment. To be given parenterally in the presence of GI toxicity, nausea or vomiting. Monitor serum levels of methotrexate to determine the optimal dose and duration of folinic acid admin. Monitor CBC, electrolytes and liver function tests before and regularly during treatment.
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Adverse Reactions
Allergic sensitisation, rash, pruritus, eythema, urticaria, nausea, vomiting, pyrexia.
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Drug Interactions
Reduces methotrexate toxicity. Enhances cytotoxic and anti-neoplastic effects of fluorouracil. Increases risk of seizures in epileptic patients treated with primidone, phenytoin, phenobarbital and succinimides.
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