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How to reduce adverse effects of methotrexate (anti-metabolite)?

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Final answer:

To minimize the adverse effects of methotrexate, folinic acid supplementation can be used to counteract the drug's inhibition of folic acid reductase. Adequate hydration, regular monitoring of blood counts, and liver function are also essential. Adjusting the dosing protocol based on the patient's response is critical for managing side effects.

Step-by-step explanation:

To reduce adverse effects of methotrexate, a commonly used anti-metabolite in chemotherapy, several strategies can be adopted. As methotrexate inhibits folic acid reductase and impacts DNA synthesis, supplementation with folinic acid, a form of folic acid, often helps to counteract these effects. This is due to the fact that folinic acid can bypass the blocked enzyme and replenish tetrahydrofolic acid levels, essential for DNA synthesis, without being affected by methotrexate.

Moreover, ensuring adequate hydration and frequent monitoring of blood counts and liver function can help manage the side effects. Regular follow-up appointments and communication with the healthcare provider enable dose adjustments and the use of additional medications to mitigate side effects as needed. In certain cases, drugs such as amodiaquine, sulfadoxine, and pyrimethamine can be optimized to reduce toxicity, especially in the treatment of diseases like malaria and toxoplasmosis.

It is crucial to monitor the patient's response and side effects regularly to adjust the dosing protocol accordingly, as Jane C. Wright's work on establishing dosage and sequence protocols for methotrexate laid the foundation for managing side effects in modern chemotherapy treatments.

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