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Warfarin

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What are the clinically significant drug interactions with tobacco smoking?

23 March 2020This Medicines Q&A summarises those drug interactions with tobacco smoking that are considered to be most clinically important. Most interactions between drugs and tobacco smoking…

Using COVID-19 vaccines in patients with anticoagulation and bleeding disorders

7 January 2021Information on use of the vaccine in patients who are receiving anticoagulants or have a bleeding disorder is given below.

Oral anticoagulant formulations suggested for adults with swallowing difficulties

1 July 2021A range of oral anticoagulants are suitable for adults with swallowing difficulties.

Using Proton Pump Inhibitors (PPIs) alongside warfarin – clinical considerations

17 June 2022PPIs may enhance warfarin anticoagulation. Patients on warfarin require counselling when started on a PPI and INR monitored appropriately.

Using oral anticoagulants in breastfeeding women

2 November 2021Thromboembolic disease management whilst breastfeeding is challenging. Warfarin is the preferred choice. Guidance on using DOACs is also provided.

Warfarin monitoring

16 July 2021

Small volume intramuscular injections in people taking oral anticoagulants

11 May 2022Advice and a summary of the issues and evidence for healthcare professionals with concerns about use of IM injections in people taking oral anticoagulants

Chondroitin - what are its drug interactions?

23 January 2020There are two published case reports of increased INR in patients receiving warfarin who self-medicated with glucosamine-chondroitin supplements. INR was increased in a further three…

Warfarin

Can small volume intramuscular injections be given to patients taking oral anticoagulants?

17 September 2018This Medicines Q&A discusses the potential risks associated with the administration of small volume IM injections to patients taking oral anticoagulants. It has been partially…