What medicines should I avoid while taking warfarin?

warfarin can interact with several medicines. Do not take any medicine without speaking to your doctor or pharmacist.

Warfarin

Uses of Warfarin

Warfarin is commonly used in the treatment of Deep Vein Thrombosis, Pulmonary Embolism, and Stroke Prevention

How Warfarin Works

Warfarin which is used in the treatment of deep vein thrombosis and stroke prevention acts by inhibiting the synthesis of vitamin K-dependent coagulation factors which are II, VII, IX, and X, as well as the anticoagulant protein C and its cofactor protein S.

Side Effects of Warfarin

Nausea, Vomiting, Diarrhea, Jaundice, Hepatic dysfunction, Vasculitis, Pancreatitis, Alterations of the sense of taste, Abdominal pain, Flatulence

Information About Warfarin

Warfarin is a vitamin K antagonist used to prevent and treat deep vein thrombosis, pulmonary embolism, and stroke in atrial fibrillation in Singapore. Available as a 1mg–5mg oral tablet taken once daily at the same time each day, it is HSA-registered and available on prescription only in Singapore. Regular INR monitoring every one to four weeks is mandatory — target INR is 2.0–3.0 for most indications, with numerous food interactions (vitamin K-rich foods) and drug interactions requiring ongoing dose adjustments and patient education. A valid doctor's consultation is required before dispensing. Order Warfarin online at DoctorOnCall Singapore with same-day delivery available. Speak to a DoctorOnCall physician today to check if Warfarin is right for you.

Warfarin is a medication commonly used to prevent and treat blood clots, including deep vein thrombosis (DVT), pulmonary embolism, and to reduce the risk of stroke in patients with atrial fibrillation or prosthetic heart valves. It works by inhibiting vitamin K–dependent clotting factors, thereby slowing the blood’s ability to form clots. Warfarin belongs to a class of medications known as vitamin K antagonists (oral anticoagulants) and is widely used in cardiovascular and haematology care. Find affordable Warfarin options from trusted brands at DoctorOnCall.

Conclusion

Consult our doctors online for safe and effective use of Warfarin tailored to your health needs. Find the best prices for affordable Warfarin tablets at DoctorOnCall Singapore.

Warnings

Kidney High Risk

Patients with reduced kidney function require lower doses of the Warfarin and may need closer monitoring to avoid serious adverse effect such as renal damage as detected from the study recently

Alcohol Not Advisable

Consumption with alcohol is not advisable as it increases the risk of excessive bleeding.

Pregnancy Not Safe

First-trimester use of Warfarin may result in fetal Warfarin syndrome (FWS). However, the risk may lessen if the mother's who requires anticoagulation takes heparin from the start of the 6th gestational week through the end of the 12th gestational week, and again at term

Driving Generally Safe

Warfarin usually does not affect the ability to drive. Do not drive unless you are feeling well.

Liver Safe If Prescribed

It is metabolized in the liver. Also, use with care in patients with liver cirrhosis however, there are no specific guidelines for Warfarin use in patients with impaired liver function.

Lactation Safe If Prescribed

Maternal Warfarin consumption is known to not pose a significant risk to normal, full-term, breastfed infants.

Frequently Asked Questions

Written by

Dr. Adeline Carol Peters, Bachelor of Medicine and Bachelor of Surgery (MBBS) — Manipal Academy of Higher Education (MAHE)

Reviewed by

Dr. Mohd Izzat Amir Bin Awang, Doctor of Medicine (MD), University of Mansoura - Manchester