Yarrow

Are there any interactions with medications?

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Lithium
Interaction Rating: Moderate Be cautious with this combination.
Talk with your health provider.

Yarrow might have an effect like a water pill or "diuretic." Taking yarrow might decrease how well the body gets rid of lithium. This could increase how much lithium is in the body and result in serious side effects. Talk with your healthcare provider before using this product if you are taking lithium. Your lithium dose might need to be changed.

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Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs)
Interaction Rating: Moderate Be cautious with this combination.
Talk with your health provider.

Large amounts of yarrow might slow blood clotting. Taking yarrow along with medications that also slow clotting might increase the chances of bruising and bleeding.

Some medications that slow blood clotting include aspirin, clopidogrel (Plavix), diclofenac (Voltaren, Cataflam, others), ibuprofen (Advil, Motrin, others), naproxen (Anaprox, Naprosyn, others), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, warfarin (Coumadin), and others.

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Sedative medications (Barbiturates)
Interaction Rating: Moderate Be cautious with this combination.
Talk with your health provider.

Yarrow might cause sleepiness and drowsiness. Medications that cause sleepiness are called sedatives. Taking yarrow along with sedative medications might cause too much sleepiness.

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Antacids
Interaction Rating: Minor Be cautious with this combination.
Talk with your health provider.

Antacids are used to decrease stomach acid. Yarrow may increase stomach acid. By increasing stomach acid, yarrow might decrease the effectiveness of antacids.

Some antacids include calcium carbonate (Tums, others), dihydroxyaluminum sodium carbonate (Rolaids, others), magaldrate (Riopan), magnesium sulfate (Bilagog), aluminum hydroxide (Amphojel), and others.

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Medications that decrease stomach acid (H2-blockers)
Interaction Rating: Minor Be cautious with this combination.
Talk with your health provider.

Yarrow might increase stomach acid. By increasing stomach acid, yarrow might decrease the effectiveness of some medications that decrease stomach acid, called H2-blockers.

Some medications that decrease stomach acid include cimetidine (Tagamet), ranitidine (Zantac), nizatidine (Axid), and famotidine (Pepcid).

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Medications that decrease stomach acid (Proton pump inhibitors)
Interaction Rating: Minor Be cautious with this combination.
Talk with your health provider.

Yarrow might increase stomach acid. By increasing stomach acid, yarrow might decrease the effectiveness of medications that are used to decrease stomach acid, called proton pump inhibitors.

Some medications that decrease stomach acid include omeprazole (Prilosec), lansoprazole (Prevacid), rabeprazole (Aciphex), pantoprazole (Protonix), and esomeprazole (Nexium).

Dosing considerations for Yarrow.

The appropriate dose of yarrow depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for yarrow. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.