Drug which decreases [antidote] the action of warfarin is:
- a- Carbimazole.
- b- Oral contraceptive.
- c- Phenobarbitone.
- d- Vitamin K.***
Yes, vitamin K is a drug which decreases the action of warfarin. Warfarin is a blood thinner that works by blocking the effects of vitamin K. Vitamin K is essential for the production of clotting factors, so blocking its effects prevents the blood from clotting properly.
Sources of Vitamin K:
Vitamin K is found in many foods, including leafy green vegetables, broccoli, and Brussels sprouts. It is also available as a supplement. If you are taking warfarin, it is important to avoid sudden changes in your vitamin K intake. This is because a sudden increase in vitamin K can make warfarin less effective and increase your risk of blood clots.
If you need to take vitamin K, it is important to talk to your doctor first. They can help you to determine the safest and most effective way to take vitamin K while you are also taking warfarin.
Medicines that reduce the action of warfarin:
Here are some other drugs that can decrease the action of warfarin:
- Antibiotics, such as penicillin and cephalosporins
- Antifungal medications, such as fluconazole and ketoconazole
- Antidepressants, such as tricyclic antidepressants and SSRIs
- Antiplatelet medications, such as aspirin and clopidogrel
- Herbal supplements, such as St. John's wort and ginkgo biloba
If you are taking warfarin, it is important to tell your doctor about all of the medications and supplements you are taking. This will help them to avoid prescribing medications that could interact with warfarin and decrease its effectiveness.
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pharmacology