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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…

Anticoagulant suggestions for adults with swallowing difficulties

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

Using warfarin with proton pump inhibitors (PPIs)

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

Warfarin monitoring

16 July 2021

Using oral anticoagulants during breastfeeding

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

Using intramuscular injections in people on oral anticoagulants

20 September 2023Advice on risks related to use of small volume (less than 3mL) intramuscular (IM) injections in people on oral anticoagulants (for example, DOACs, warfarin)

Advising on missed or delayed doses of medicines

15 October 2021Guidance to advise people who occasionally forget or are late in taking a dose of their medicine(s).