Interactions on record — worth a quick check against your medications. Based on 12 of 13 ingredients. Check your meds →
Dietary supplement

AR-1 Powder Ingredients & Drug Interactions

by Christopher's Original Formulas

Powder Category: Botanical
Most serious interaction: Moderate
The interaction bottom line Most serious interaction: Moderate

AR-1 Powder is a dietary supplement by Christopher's Original Formulas with 13 active ingredients. Its ingredients are commonly taken for kidney and bladder stones, urinary tract complaints, enlarged prostate symptoms.Based on those ingredients, 1,287 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Valerian, Black Cohosh, Chaparral. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of AR-1 Powder by Christopher's Original Formulas

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 0 of its 13 active ingredients.

AR-1 Powder contains 13 ingredients, of which we could identify 12 active herbs. The mix includes hydrangea, yucca, lobelia, sarsaparilla, valerian, black walnut, cayenne pepper, black cohosh, chaparral, burdock, brigham tea (Mormon tea), and wormwood.

Wild lettuce is also listed. These are blended into a powder form with no inactive fillers listed.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed

This product doesn't appear to be marketed for a specific use, so we graded its ingredients' overall clinical evidence instead.

Strong

Strong clinical evidence supports its ingredients for:

Why this rating?
  • We looked at the product name, claims, and label statements and couldn't find a stated purpose to grade.
  • Since the label doesn't commit to one use, we graded the ingredients' overall clinical evidence instead.
  • On file: Diabetic neuropathy — rated "Likely Effective" (Capsicum) (Natural Medicines).
  • On file: Postherpetic neuralgia — rated "Likely Effective" (Capsicum) (Natural Medicines).
  • On file: Menopausal symptoms — rated "Possibly Effective" (Black Cohosh) (Natural Medicines).
  • On file: Insomnia — rated "Possibly Effective" (Valerian) (Natural Medicines).
  • On file: Back pain — rated "Possibly Effective" (Capsicum) (Natural Medicines).

The evidence for these ingredients is sparse. Valerian is possibly effective for insomnia, though long-term benefit isn't certain.

Cayenne pepper is likely effective for postherpetic neuralgia (nerve pain after shingles) and diabetic neuropathy, and possibly effective for cluster headaches and back pain. Black cohosh is possibly effective for menopausal symptoms.

The remaining ingredients—yucca, lobelia, sarsaparilla, black walnut, chaparral, burdock, brigham tea, and wormwood—lack reliable evidence for their effectiveness, and wild lettuce's evidence isn't on file with us.

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 12 of the 12 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 12 of 12.
  • General safety write-ups exist for 12 of 12.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Several ingredients in this product carry real safety concerns. Chaparral is linked to serious liver and kidney toxicity and is not recommended.

Lobelia can cause nausea, vomiting, diarrhea, dizziness, and tremors at doses as low as 50 mg; at 600 mg or higher, it risks toxicity with sweating, rapid heart rate, seizures, low blood pressure, and death. Wormwood contains thujone, a neurotoxin; medicinal amounts may cause muscle aches, nausea, kidney injury, and seizures.

Valerian is generally well tolerated short-term but can cause dizziness, drowsiness, headache, and gastrointestinal upset; long-term safety isn't well studied, and rapid stopping after extended use may cause withdrawal symptoms. Hydrangea, yucca, sarsaparilla, black walnut, black cohosh, burdock, and brigham tea have limited human safety data.

Cayenne pepper is well tolerated in food amounts but causes burning and irritation orally; concentrated supplements aren't well studied. None of these ingredients should be used during pregnancy or while breastfeeding based on the safety data provided—lobelia and chaparral are rated likely unsafe, black cohosh and burdock possibly unsafe, and the others lack sufficient data to recommend use.

Meds to double-check

Moderate interaction found
Known Interaction Concern · database check
Moderate identified

The most serious documented interaction for these ingredients is Moderate. Check your medications for a personalized result.

Why this rating?
  • 9 of the 12 matched ingredients can interact with medications — Burdock, Lobelia, Sarsaparilla, Hydrangea, Wormwood, among others.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; seizure medications; diabetes medications; heart-rhythm medications; lithium.
  • For scale: 1,288 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Before taking AR-1 Powder, check with your pharmacist if you take lithium (hydrangea, lobelia, sarsaparilla raise levels), blood thinners or antiplatelet drugs (burdock, cayenne pepper increase bleeding risk), sedative or sleep drugs (valerian causes additive drowsiness), diabetes medications (cayenne pepper may lower blood sugar too much), liver-toxic drugs (black cohosh, chaparral raise liver damage risk), serotonin-boosting antidepressants (black cohosh may trigger serotonin syndrome), or seizure medications (wormwood may interfere). Altogether, these interactions span 1,267 individual medications.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with strong clinical evidence behind its ingredients' uses. Moderate medication interactions have been identified, and safety information is well characterized.

This is a complex herbal blend with interactions that need careful checking against your medications, especially if you take lithium, blood thinners, sedatives, diabetes drugs, or antidepressants. Several ingredients carry real toxicity risks—chaparral and lobelia especially—and none are recommended during pregnancy or breastfeeding.

Talk with your pharmacist before starting it.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 12 of 13 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Apr 24, 2025.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about AR-1 Powder, straight from the product label.

Brand Christopher's Original Formulas
Barcode (UPC) 084783873303
Net contents 16 Ounce(s)
Market status On market
Date entered into DSLD Apr 24, 2025
DSLD ID 329255
Product type Botanical
Supplement form Powder
Dietary claims / uses No Claim
Intended target group(s) Adult (18 - 50 Years)
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for AR-1 Powder by Christopher's Original Formulas, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
0 Not Present
Maximum serving Sizes:
0 Not Present
UPC/BARCODE
084783873303
IngredientAmount% DV
Hydrangea0 NP--
Yucca0 NP--
Lobelia0 NP--
Sarsaparilla0 NP--
Valerian0 NP--
Black Walnut0 NP--
Cayenne Pepper0 NP--
Black Cohosh0 NP--
Chaparral0 NP--
Burdock0 NP--
Brigham Tea0 NP--
Wormwood0 NP--
Lettuce, Wild0 NP--

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
General Statements

John R. Christopher Lot #2017624 Exp. 05/2022

Precautions

This product is not to be repackaged or relabeled.

See for yourself

AR-1 Powder by Christopher's Original Formulas label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

What’s inside

The Ingredients in AR-1 Powder by Christopher's Original Formulas

These are the 13 active ingredients this product is made of. Select any to open its full monograph.

Serving size0 Not Present Dosage formPowder Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Hydrangea

Interacts with
1 drug
0 NP per serving

Hydrangea root has a long history in folk medicine, mainly for urinary and kidney stone complaints, but there is very little modern human research to...

Hydrangea monograph & interactions

Yucca

No known
interactions
0 NP per serving

Yucca is a desert plant traditionally used for joint pain, arthritis, and digestion, and it contains compounds called saponins thought to have anti-in...

Yucca monograph & interactions

Lobelia

Interacts with
1 drug
0 NP per serving

Lobelia is a traditional herb once used for breathing problems and to help people quit smoking, but reliable evidence supporting these uses is lacking...

Lobelia monograph & interactions

Sarsaparilla

Interacts with
2 drugs
0 NP per serving

Sarsaparilla is a traditional root used in teas, tonics, and old-fashioned root beer flavoring. Modern evidence for its health claims is very limited...

Sarsaparilla monograph & interactions

Valerian

Interacts with
902 drugs
0 NP per serving

Valerian is an herb whose root is widely used as a natural sleep aid and for calming nerves. The evidence is mixed and often weak, so it may help some...

Valerian monograph & interactions

Black Walnut

No known
interactions
0 NP per serving

Black walnut is a tree whose green hulls are traditionally used as a natural antiparasitic and digestive remedy, but solid human evidence for these us...

Black Walnut monograph & interactions

Cayenne Pepper

Interacts with
239 drugs
0 NP per serving

Capsicum (chili pepper) contains capsaicin, which is best known and best studied as a topical treatment for certain types of pain. Topical capsaicin p...

Cayenne Pepper monograph & interactions

Black Cohosh

Interacts with
652 drugs
0 NP per serving

Black cohosh is a North American plant most often used to ease menopause symptoms like hot flashes, but the research is mixed and far from settled. It...

Black Cohosh monograph & interactions

Chaparral

Interacts with
370 drugs
0 NP per serving

Chaparral is a desert shrub long used in traditional medicine, but there is no reliable proof it treats any condition. It has been linked to serious a...

Chaparral monograph & interactions

Burdock

Interacts with
122 drugs
0 NP per serving

Burdock is a traditional herb most often used for skin problems and as a so-called 'blood purifier,' but high-quality human studies are lacking and mo...

Burdock monograph & interactions

Brigham Tea

No known
interactions
0 NP per serving

Mormon Tea is a traditional Southwestern desert beverage made from a North American Ephedra plant that, unlike Asian ephedra, is generally thought to...

Brigham Tea monograph & interactions

Wormwood

Interacts with
50 drugs
0 NP per serving

Wormwood is a very bitter herb traditionally used to stimulate appetite and ease digestion, and it has early research interest in Crohn's disease. It...

Wormwood monograph & interactions

Lettuce, Wild

0 NP per serving
Interaction report

AR-1 Powder by Christopher's Original Formulas Drug Interactions

Want to check YOUR meds against AR-1 Powder?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

Go to the checker
1,287Drugs
963 Moderate 324 Minor

Ingredients driving the most interactions

Valerian 902
Chaparral 370
Burdock 122

Each ingredient & the kinds of drugs it affects

For each ingredient in AR-1 Powder with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Valerian6 drug types · 902 drugs

Alcohol (Ethanol)

Valerian can have additive sedative effects when used concomitantly with alcohol.
Valerian has sedative effects. Theoretically, valerian might have an additive sedative effect when combined with alcohol. Excessive sedation has been reported in an alcohol-abusing individual who took valerian and Gingko biloba. However, the potential interaction between valerian and alcohol has been disputed in other research. Limited evidence suggests that a combination of valerian 160 mg and lemon balm 80 mg (Euvegal) does not cause further deterioration in reaction ability and reaction rate when taken with alcohol as compared to the effects of alcohol alone.

Likelihood Possible Evidence B
Alprazolam (Xanax)

Valerian can have additive sedative effects when used with alprazolam. Also, valerian in high doses might modestly increase alprazolam levels, though this is not likely to be clinically significant.
Valerian has sedative effects. Theoretically, valerian might cause additive sedation when combined with alprazolam. Also, a small pharmacokinetic study shows that taking valerian extract 1000 mg daily (providing 11 mg valerenic acid) might increase alprazolam levels by about 19%. This might be due to valerian's mild inhibition of cytochrome P450 3A4 (CYP3A4). Despite being statistically significant, this increase is not likely to be clinically significant.

Likelihood Possible Evidence B
Cns Depressants

Valerian can have additive sedative effects when used concomitantly with CNS depressant drugs.
Theoretically, concomitant use of valerian and drugs with sedative and anesthetic properties may cause additive therapeutic and adverse effects.

Likelihood Possible Evidence D
Glucuronidated Drugs

Valerian might weakly inhibit glucuronidation and increase concentrations of drugs metabolized by UGT1A1 and UGT2B7.
In vitro research shows that methanolic valerian extract and valerenic acid might competitively inhibit UDP-glucuronosyltransferase (UGT) 1A1 (UGT1A1) and UGT2B7.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP2D6.
Although some in vitro evidence suggests that valerian affects CYP2D6, clinical pharmacokinetic (PK) studies show that valerian is unlikely to affect the CYP2D6 enzyme. In one PK study, taking valerian 1000 mg (providing about 11 mg valerenic acid) nightly for 14 days did not affect the metabolism of dextromethorphan, a CYP2D6 substrate. In another PK study, taking valerian 125 mg three times daily for 28 days did not affect metabolism of debrisoquine, an accepted CYP2D6 probe-substrate.

Likelihood Unlikely Evidence B
Cytochrome P450 3A4 (Cyp3A4) Substrates

Valerian does not seem to have a clinically relevant effect on levels of drugs metabolized by CYP3A4.
Although some in vitro evidence suggests that valerian extract might inhibit or induce CYP3A4, clinical pharmacokinetic (PK) studies show that valerian does not have a clinically significant effect on the CYP3A4 enzyme. In one PK study, taking valerian 125 mg three times daily for 28 days did not affect metabolism of midazolam, an accepted CYP3A4 probe-substrate. In another PK study, taking valerian 1000 mg (providing about 11 mg valerenic acid) nightly for 14 days modestly increases levels of alprazolam, a CYP3A4 substrate, suggesting mild inhibition of CYP3A4. However, this mild inhibition is unlikely to be clinically relevant.

Likelihood Possible Evidence B

Black Cohosh7 drug types · 652 drugs

Atorvastatin (Lipitor)

Taking black cohosh with atorvastatin might increase the risk for elevated liver function tests.
In one case report, a patient taking atorvastatin (Lipitor) developed significantly elevated liver function enzymes after starting black cohosh 100 mg four times daily. Liver enzymes returned to normal when black cohosh was discontinued. It is unclear whether the elevated liver enzymes were due to black cohosh itself or an interaction between atorvastatin and black cohosh.

Likelihood Possible Evidence D
Cisplatin (Platinol-Aq)

Theoretically, black cohosh may reduce the clinical effects of cisplatin.
Animal research suggests that black cohosh might decrease the cytotoxic effect of cisplatin on breast cancer cells.

Likelihood Possible Evidence D
Cytochrome P450 2D6 (Cyp2D6) Substrates

Some research suggests that black cohosh might inhibit CYP2D6, but there is conflicting evidence.
Some clinical research suggests that black cohosh might modestly inhibit CYP2D6 and increase levels of drugs metabolized by this enzyme. However, contradictory clinical research shows a specific black cohosh product (Remifemin, Enzymatic Therapy) 40 mg twice daily does not significantly inhibit metabolism of a CYP2D6 substrate in healthy study volunteers. Until more is known, use black cohosh cautiously in patients taking drugs metabolized by CYP2D6.

Likelihood Possible Evidence B
Estrogens

Theoretically, black cohosh may alter the effects of estrogen therapy.
Some research suggests that black cohosh has estrogenic effects. This may enhance or inhibit the effects of estrogen therapy.

Likelihood Possible Evidence D
Hepatotoxic Drugs

Theoretically, taking black cohosh with hepatotoxic drugs may increase the risk of liver damage.
There is concern that black cohosh might be linked to cases of liver failure and autoimmune hepatitis.

Likelihood Possible Evidence D
Serotonergic Drugs

Combining serotonergic drugs with black cohosh might cause additive serotonergic effects.
Black cohosh might increase the risk of serotonin syndrome when combined with other serotonergic drugs. Black cohosh acts as an agonist at several serotonin receptor subtypes and might interact with other serotonergic medications. In one case, a 55-year-old female who had been on stable treatment with sertraline 50 mg and duloxetine 60 mg daily developed serotonin syndrome after taking black cohosh extract 40 mg daily for 3 days.

Likelihood Possible Evidence D
Organic Anion-Transporting Polypeptide Substrates (Oatp)

Black cohosh may inhibit one form of OATP, OATP2B1, which could reduce the bioavailability and clinical effects of OATP2B1 substrates.
In vitro research shows that black cohosh modestly inhibits OATP2B1. OATPs are expressed in the small intestine and liver and are responsible for the uptake of drugs and other compounds into the body. Inhibition of OATP may reduce the bioavailability of oral drugs that are substrates of OATP.

Likelihood Possible Evidence D

Chaparral1 drug type · 370 drugs

Hepatotoxic Drugs

Theoretically, chaparral might have additive adverse effects on the liver when used with hepatotoxic drugs.

Likelihood Possible Evidence D

Cayenne Pepper6 drug types · 239 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, capsicum may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
In vitro research shows that capsicum might increase the effects of antiplatelet drugs. Also, population research shows that capsicum is associated with an increased risk of self-reported bleeding in patients taking warfarin. However, clinical research shows that taking a single dose of capsaicin (Asian Herbex Ltd.), the active ingredient in capsicum, 400-800 mcg orally in combination with aspirin 500 mg does not decrease platelet aggregation when compared with taking aspirin 500 mg alone. Also, there was no notable effect on measures of platelet aggregation with capsaicin. It is unclear whether capsaicin must be used in more than a single dose to affect platelet aggregation.

Likelihood Possible Evidence B
Antidiabetes Drugs

Theoretically, taking capsicum with antidiabetes drugs might increase the risk of hypoglycemia.
Preliminary clinical research shows that consuming capsicum 5 grams along with a glucose drink attenuates the rise in plasma glucose after 30 minutes by 21%, decreases the 2-hour postprandial area under the curve of plasma glucose by 11%, and increases the 2-hour postprandial area under the curve of plasma insulin by 58% in healthy individuals when compared with placebo. Other clinical research shows that taking capsicum 5 mg daily for 28 days significantly reduces postprandial blood glucose and insulin levels, but not fasting blood glucose and insulin levels, in patients with gestational diabetes.

Likelihood Possible Evidence B
Aspirin

Theoretically, taking capsicum with aspirin might reduce the bioavailability of aspirin.
Animal research shows that acute or chronic intake of capsicum pepper reduces oral aspirin bioavailability. This has not been shown in humans.

Likelihood Possible Evidence D
Theophylline

Theoretically, taking capsicum with theophylline might increase the levels and adverse effects of theophylline.
In animal research, oral administration of capsicum reduced excretion of theophylline. However, capsicum does not seem to affect the pharmacokinetics of theophylline when administered intravenously.

Likelihood Possible Evidence D
Ace Inhibitors (Aceis)

Theoretically, using topical capsaicin may increase the risk of ACE inhibitor-induced cough.
There is one case report of a topically applied capsaicin cream contributing to the cough reflex in a patient using an ACEI. However, it is unclear if this interaction is clinically significant.

Likelihood Unlikely Evidence D
Ciprofloxacin (Cipro)

Theoretically, taking capsicum with ciprofloxacin might increase levels and adverse effects of ciprofloxacin.
Animal research shows that concomitant use of capsaicin, the active constituent of capsicum, and ciprofloxacin increases the bioavailability of ciprofloxacin by up to 70%.

Likelihood Possible Evidence D

Burdock1 drug type · 122 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, taking burdock with anticoagulant or antiplatelet drugs might increase the risk of bleeding.

In vitro research shows that lignans from burdock reduce rabbit platelet aggregation by inhibiting platelet activating factor. This interaction has not been reported in humans.

Likelihood Possible Evidence D

Wormwood1 drug type · 50 drugs

Anticonvulsants

Theoretically, taking wormwood might interfere with the effects of anticonvulsant drugs.
Thujone, a constituent of wormwood, has convulsant effects.

Likelihood Possible Evidence D

Sarsaparilla2 drug types · 2 drugs

Digoxin (Lanoxin)

Theoretically, concomitant use of sarsaparilla with digoxin might increase the risk of cardiac toxicity.
Sarsaparilla is thought to have diuretic properties, which could potentially cause potassium loss. Overuse or misuse of sarsaparilla with cardiac glycoside therapy might increase the risk of cardiac toxicity due to potassium loss.

Likelihood Possible Evidence D
Lithium

Theoretically, sarsaparilla might increase the effects and adverse effects of lithium.
Sarsaparilla is thought to have diuretic properties. Due to these effects, sarsaparilla might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.

Likelihood Probable Evidence D

Hydrangea1 drug type · 1 drug

Lithium

Hydrangea is thought to have diuretic properties. Theoretically, due to these potential diuretic effects, hydrangea might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.

Likelihood Probable Evidence D

Lobelia1 drug type · 1 drug

Lithium

Lobelia is thought to have diuretic properties. Theoretically, due to these potential diuretic effects, lobelia might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.

Likelihood Probable Evidence D
The maker

Brand information

Manufacturer and brand details for AR-1 Powder, from the product label.

Christopher's Original Formulas

See all Christopher's Original Formulas products
Name
Christopher's Original Formulas
Pharmacist Counseling Corner

AR-1 Powder by Christopher's Original Formulas: Common Questions

Does AR-1 Powder by Christopher's Original Formulas interact with any medications?
Yes. Based on its ingredients, AR-1 Powder has a known interaction with 1,287 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
AR-1 Powder contains 13 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is this safe to take while pregnant or breastfeeding?
No, the safety data advise against it. Lobelia and chaparral are likely unsafe in pregnancy; black cohosh and burdock are possibly unsafe. The other ingredients lack enough safety information, so use during pregnancy or breastfeeding is best avoided. Talk with your doctor or pharmacist for personalized advice.
What does valerian in this formula do?
Valerian is possibly effective for insomnia. It has sedative properties, which is why it's in sleep-support blends. However, it commonly causes dizziness, drowsiness, and headache, and long-term safety isn't well studied.
Is cayenne pepper in here safe?
Cayenne pepper is generally well tolerated in food amounts. At the supplement dose in this powder, it may cause burning, bloating, diarrhea, nausea, and stomach upset. It's likely safe in pregnancy at food levels and possibly safe at concentrated doses, but medicinal supplements during pregnancy haven't been well studied.
What should I know about black cohosh in this product?
Black cohosh is possibly effective for menopausal hot flashes. It's generally well tolerated short-term but rare cases of liver problems have been reported. It's not safe during pregnancy or breastfeeding, and it can interact with liver-toxic drugs, certain cancer medications, hormones, and antidepressants.
Why is chaparral in a supplement if it's unsafe?
Chaparral has been linked to serious liver and kidney toxicity—including cases requiring liver transplant—and is not recommended by safety experts. The facts note that any benefits may not outweigh the toxicity risk. You may want to ask the manufacturer why they included it or consider a different product.
What's lobelia for, and why is it a concern?
Lobelia was historically used for smoking cessation, but it's possibly ineffective and carries real toxicity risks. Nausea, vomiting, and diarrhea can start at doses as low as 50 mg. At 600 mg or higher, it risks seizures, low blood pressure, and death. It's not safe during pregnancy or breastfeeding.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

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Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

AR-1 Powder label
Go deeper

The Full Monographs Behind AR-1 Powder’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Hydrangea

Interacts with 1 drug

Hydrangea root has a long history in folk medicine, mainly for urinary and kidney stone complaints, but there is very little modern human research to confirm it works for any condition. Beca...

Read the full Hydrangea monograph →
Herb & supplement monograph

Yucca

Yucca is a desert plant traditionally used for joint pain, arthritis, and digestion, and it contains compounds called saponins thought to have anti-inflammatory effects. Human evidence for t...

Read the full Yucca monograph →
Herb & supplement monograph

Lobelia

Interacts with 1 drug

Lobelia is a traditional herb once used for breathing problems and to help people quit smoking, but reliable evidence supporting these uses is lacking. It can be toxic in higher amounts, cau...

Read the full Lobelia monograph →
Herb & supplement monograph

Sarsaparilla

Interacts with 2 drugs

Sarsaparilla is a traditional root used in teas, tonics, and old-fashioned root beer flavoring. Modern evidence for its health claims is very limited and comes mostly from lab studies, so it...

Read the full Sarsaparilla monograph →
Herb & supplement monograph

Valerian

Interacts with 902 drugs

Valerian is an herb whose root is widely used as a natural sleep aid and for calming nerves. The evidence is mixed and often weak, so it may help some people sleep but does not work reliably...

Read the full Valerian monograph →
Herb & supplement monograph

Black Walnut

Black walnut is a tree whose green hulls are traditionally used as a natural antiparasitic and digestive remedy, but solid human evidence for these uses is lacking. It contains a compound ca...

Read the full Black Walnut monograph →
Herb & supplement monograph

Capsicum

Interacts with 239 drugs

Capsicum (chili pepper) contains capsaicin, which is best known and best studied as a topical treatment for certain types of pain. Topical capsaicin products are supported by reasonable evid...

Read the full Capsicum monograph →
Herb & supplement monograph

Black Cohosh

Interacts with 652 drugs

Black cohosh is a North American plant most often used to ease menopause symptoms like hot flashes, but the research is mixed and far from settled. It is generally well tolerated for short-t...

Read the full Black Cohosh monograph →
Herb & supplement monograph

Chaparral

Interacts with 370 drugs

Chaparral is a desert shrub long used in traditional medicine, but there is no reliable proof it treats any condition. It has been linked to serious and sometimes irreversible liver and kidn...

Read the full Chaparral monograph →
Herb & supplement monograph

Burdock

Interacts with 122 drugs

Burdock is a traditional herb most often used for skin problems and as a so-called 'blood purifier,' but high-quality human studies are lacking and most claims are not well proven. It is wid...

Read the full Burdock monograph →
Herb & supplement monograph

Mormon Tea

Mormon Tea is a traditional Southwestern desert beverage made from a North American Ephedra plant that, unlike Asian ephedra, is generally thought to lack ephedrine. There is very little mod...

Read the full Mormon Tea monograph →
Herb & supplement monograph

Wormwood

Interacts with 50 drugs

Wormwood is a very bitter herb traditionally used to stimulate appetite and ease digestion, and it has early research interest in Crohn's disease. It contains thujone, which can be toxic in...

Read the full Wormwood monograph →
Sources

Sources & How We Checked

AR-1 Powder's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 249 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Hydrangea 1 reference
  1. Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.

See these in context on the Hydrangea monograph →

Yucca 3 references
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Lobelia 6 references
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Black Walnut 3 references
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Black Cohosh 68 references
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Chaparral 16 references
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Burdock 11 references
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Mormon Tea 2 references
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Wormwood 10 references
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DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

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