WebIt is difficult to predict if the INR will increase or decrease (this will also depend on how ill the person is). ... Phenytoin — increase warfarin dose as necessary. After stopping phenytoin, the INR may continue to be affected for up to 6 weeks. Vitamin K-containing vitamin complexes, including some enteral feeds (containing vitamin K ...
Warfarin Anticoagulant Medication - Cleveland Clinic
WebDrugs that may either increase or decrease phenytoin serum levels: Antiepileptic drugs: Phenobarbital, valproate sodium, valproic acid: ... Increased and decreased PT/INR responses have been reported when phenytoin is coadministered with warfarin: Other: Corticosteroids, doxycycline, estrogens, furosemide, oral contraceptives, paroxetine ... WebMedicines that May DECREASE the Effectiveness of Warfarin; Carbamazepine (Tegretol®) Phenobarbital (Luminal®) Phenytoin (Dilantin®) Rifampin (Rifadin®) Vitamin K Multiple brands: Cholestyramine (Questran® Questran Light®) Sucralfate (Carafate®) This is a sample list and does not include all drugs that may interfere with warfarin. g shipman pharmacy
Patient education: Warfarin (Beyond the Basics) - UpToDate
WebUsing warfarin together with phenytoin may cause you to bleed more easily. It may also increase phenytoin levels. Phenytoin levels and prothrombin time or International Normalized Ratio (INR) should be monitored whenever the dosage is changed or discontinued. You should notify your doctor promptly if you have any signs of unusual or … WebPhenytoin may decrease serum concentrations of thyroid hormone (T4 and T3), sometimes with an accompanying increase in thyroid-stimulating hormone (TSH), but usually in the … WebMay 26, 2024 · Phenytoin Dose-Dependent Adverse Effects (aka indications of phenytoin toxicity) Nausea/vomiting (early) Nystagmus. Ataxia. CNS depression (including coma and possible respiratory failure) Pod 2: Phenytoin Protein Binding and Volume of Distribution (Vd) One of the reasons phenytoin is so difficult to predict is because it is highly protein … final score football results