Warfarin Tablet side effects
Reported Effects (Nuksanat)
- Bleeding — bruising, nosebleed, prolonged wound bleeding, menorrhagia
- Nausea (mild)
- Alopecia — reversible hair loss
Serious Effects and Warning Symptoms (Ahm alamat)
- Intracranial haemorrhage — LIFE-THREATENING
- Major GI haemorrhage (blood in stool/vomit)
- Warfarin-induced skin necrosis (first days of therapy — protein C deficiency)
- Purple toe syndrome
- Osteoporosis (long-term use)
- Teratogenicity — embryopathy if taken in pregnancy
A list does not determine frequency or prove causation. Seek medical advice for persistent, worsening or unexpected symptoms.
Interactions (Dawaon ke sath reaction)
Amiodarone (MAJOR — increases INR); fluconazole/metronidazole (increase INR — CYP2C9 inhibition); aspirin/NSAIDs (additive bleeding); ciprofloxacin/clarithromycin (increase INR); rifampicin (MAJOR — decreases INR, CYP2C9 inducer); carbamazepine/phenytoin (decrease INR); St. John's Wort (decreases INR); ginkgo/garlic/ginger supplements (increase bleeding); vitamin K supplements (decrease INR); high-dose paracetamol (increases INR); clopidogrel (additive platelet inhibition)
Before Changing Treatment (Ilaj badalne se pehle)
- Regular INR tests and an individual anticoagulation plan are essential.
- Warfarin can harm a pregnancy; contact the anticoagulation/pregnancy team promptly. Certain mechanical-valve cases require a specialist plan. Do not stop or switch anticoagulants yourself.
- Significant bleeding, head injury or sudden severe headache requires emergency assessment.
- Do not double a missed dose; follow the anticoagulation service’s instructions.
- Keep vitamin K intake reasonably consistent and check new medicines or supplements.
Related Information (Mazeed maloomat)
Full Warfarin Tablet guide · Uses · Dosage · Side effects
Educational information only. This editorial correction does not constitute a new clinician review. Confirm the local product leaflet and prescription with a qualified healthcare professional.