Arnica/Dalterparin interactions?

[Jensgoldenpig]

Hi all, I’m having bilateral mastectomy soon & the surgeon wants me to start oral arnica. I’m on daily dalterparin (& hydroxychloroquine). I know arnica interacts with warfarin but struggling to find out how or if theres any specific interaction with dalterparin. Does anyone have experience or any pointers?

Many thanks!

[HollyHeski Administrator]

I was advised not to take arnica as I'm on clexane, clopidogrel and aspirin.

WebMD states ' There are no significant drug interactions, when using topical forms of arnica. Arnica may increase the effect of anticoagulants and other drugs that increase the risk of bleeding when taken orally.'

I would speak to your APS specialist and get a bridging plan put in place too.

[Jensgoldenpig in reply to HollyHeski]

Cheers for your reply.

I read the guidance on Web MD, it’s replicated across a few sites. Problem is often when guidance is general, it turns out it’s referring to warfarin.

I’ll probably end up omitting the arnica but will continue looking for specific info.

Thanks I have a bridging plan in place as I have surgery so frequently.

[Yissica]

Arnica slows down the clotting process and so has the potential to interact with all anticoagulants. It is classed as an intermediate level interaction but increases bleeding risk.

webmd.com/vitamins/ai/ingre...

[MaryF Administrator]

Hi, I have read the reply from HollyHeski and I agree with this, If I were you I would be terribly cautious and get in touch straight away with your main Hughes Syndrome/APS consultant: drugs.com/npc/arnica.html I use Arnica cream, but don't take it as a supplement. I am pretty sure it should be not taken with Aspirin or anticoagulants. MaryF

[Jensgoldenpig in reply to MaryF]

Cheers MaryF & Yissca for your replies. I’ve looked at a few studies like this ncbi.nlm.nih.gov/m/pubmed/2... which is why I think the surgeon wants me on oral arnica. I’ll try get hold of my local haematologist or if not I’ll try St T’s. If I find any specific studies I’ll post.

[KellyInTexas Administrator]

Ditto to my fellow admin and fellow forum members.

The best of health to you!