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Dietary supplement

Ultra Cordyceps 750 mg Ingredients & Drug Interactions

by Doctor's Best

Ultra Cordyceps 750 mg label
See full label image
Capsule Category: Non-nutrient/non-botanical
Most serious interaction: Moderate
Clinical methodology reviewed by · Updated Sep 23, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Ultra Cordyceps 750 mg against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line Most serious interaction: Moderate

Ultra Cordyceps 750 mg is a dietary supplement by Doctor's Best with 1 active ingredient. Its ingredients are commonly taken for fatigue and low energy, athletic performance and stamina, respiratory and lung support.Based on those ingredients, 249 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Cordyceps extract. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

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Check Your Meds Against Ultra Cordyceps 750 mg by Doctor's Best

Ask about any prescription or over-the-counter medication and we check it for interactions with Ultra Cordyceps 750 mg by Doctor's Best — and tell you which ingredient is responsible.

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HelloPharmacist Scorecard of Ultra Cordyceps 750 mg by Doctor's Best

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

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Sep 17, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

Doctor's Best Ultra Cordyceps 750 mg is a straightforward single-ingredient product: it contains 750 mg of cordyceps extract per capsule. Cordyceps is a fungus traditionally used in Chinese medicine, and this extract concentrates its active compounds.

The capsule itself is made from hypromellose (a plant-based coating), with microcrystalline cellulose and magnesium stearate as inactive ingredients to hold everything together.

Does it work?

Not established
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
Not established

The graded evidence we hold for these ingredients covers different conditions than the ones this product is marketed for, so there's no established rating for its stated use — see Cordyceps's own graded uses on its monograph.

Why this rating?
  • The label markets this product for: energy, stamina, vitality, lung and cognitive health.
  • We looked for evidence on: Fatigue, Athletic performance, Asthma, Cough, memory, cognitive function — and 1 related terms.
  • The closest evidence on file: Cordyceps is rated "Possibly Ineffective" for Athletic performance (Natural Medicines).
  • Also on file: Cordyceps is rated "Insufficient Reliable Evidence To Rate" for Asthma, Cough, Fatigue.

The evidence for cordyceps is mixed and often insufficient to draw firm conclusions. For athletic performance, research suggests it's possibly ineffective—meaning we don't have good reason to expect it to boost endurance or strength.

For sexual dysfunction, asthma, chronic obstructive pulmonary disease (COPD), arrhythmia (irregular heartbeat), and lung cancer, we don't have enough reliable evidence to rate whether it works or not. If you're considering this product for a specific health goal, it's worth checking the current research with your doctor or pharmacist to see what might actually help.

The evidence, ingredient by ingredient Cordyceps

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 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Cordyceps is generally well tolerated when taken for up to a year, though the evidence base is limited and supplement quality can vary significantly. The most common side effects are minor—abdominal discomfort, constipation, or diarrhea—and were uncommon in studies; taking it with food may reduce these symptoms.

There's a rare case report of liver inflammation (hepatitis) linked to a cordyceps product, though it's unclear whether cordyceps itself or a contaminant was responsible. Because safety data during pregnancy and breastfeeding is insufficient, these are best avoided if you're pregnant or nursing—talk with your doctor about what's right for your situation.

Side effects, ingredient by ingredient Cordyceps

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?
  • 1 of the 1 matched ingredient can interact with medications — Cordyceps.
  • The most serious interaction on file is rated Moderate.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs.
  • For scale: 249 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.

Check with your doctor or pharmacist before taking this if you're on blood thinners or antiplatelet drugs (warfarin, aspirin, clopidogrel, and others)—cordyceps may raise bleeding risk. Also flag it if you take immunosuppressants like cyclosporine or testosterone therapy, since cordyceps theoretically may interfere with how these work.

No other major drug interactions are documented for the ingredient we could check.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFully disclosed formula with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.

Ultra Cordyceps might appeal to someone exploring traditional fungi for general wellness, but the evidence for specific health claims is thin. If you take blood thinners, immunosuppressants, or testosterone therapy, you'll need to check with your doctor or pharmacist first—cordyceps may interfere with how these drugs work.

For most other people, the main concern is mild digestion issues and the fact that supplement quality varies. Run your medications through the interaction checker below before you start.

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

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Jun 16, 2022.

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 Ultra Cordyceps 750 mg, straight from the product label.

Brand Doctor's Best
Barcode (UPC) 753950001039
Net contents 60 Veggie Cap(s)
Market status On market
Date entered into DSLD Jun 16, 2022
DSLD ID 269331
Product type Non-nutrient/non-botanical
Supplement form Capsule
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Gluten Free
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 Ultra Cordyceps 750 mg by Doctor's Best, 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:
1 Veggie Capsule(s)
Maximum serving Sizes:
1 Veggie Capsule(s)
Servings per container
60
UPC/BARCODE
753950001039
IngredientAmount% DV
Cordyceps extract750 mg--

Other ingredients: Hypromellose, Magnesium Stearate, Microcrystalline Cellulose

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.
Formula

Doctor’s Best Ultra Cordyceps contains pure cultivated Cordyceps sinensis, an herb used for centuries in China as a rejuvenating tonic that improves energy and supports function of various organs and systems. The strain of Cordyceps in this product is recognized by the Chinese government as similar to wild Cordyceps sinensis, a rare fungus that grows above 15,000 feet in the Tibetan Highlands region of China.

Formulation

Helps support energy and stamina Helps support vitality Helps support lung health, liver, memory and cognitive functions

Helps support energy, stamina and vitality

Vegan

Non-GMO Gluten Free Soy Free

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Brand IP Statement(s)

Science-Based Nutrition

FDA Statement of Identity

Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested Adult Use: Take 1 capsule daily, with or without food, or as recommended by a nutritionally informed physician.

Precautions

Warning: Cordyceps has mild blood-thinning properties. Use with caution when taking anti-coagulant (blood thinning) medications or MAO inhibitors.

Keep out of reach of children.

Storage

Store in a cool dry place.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Ultra Cordyceps 750 mg by Doctor's Best label

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

Ultra Cordyceps 750 mg label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Ultra Cordyceps 750 mg by Doctor's Best

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size1 Veggie Capsule(s) Dosage formCapsule Servings per container60 Amounts shown are per serving.

Cordyceps extract

Interacts with
249 drugs
750 mg per serving Form: Adenosine, Cordycepic Acid

Cordyceps is a fungus used in traditional Chinese medicine for energy, exercise performance, and lung and immune support. Human research is limited an...

Cordyceps extract monograph & interactions

Other (inactive) ingredients: Hypromellose, Magnesium Stearate, Microcrystalline Cellulose. These complete the product’s ingredient list but are not active constituents.

Interaction report

Ultra Cordyceps 750 mg by Doctor's Best Drug Interactions

Want to check YOUR meds against Ultra Cordyceps 750 mg?

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
249Drugs
241 Moderate 8 Minor

Ingredients driving the most interactions

Cordyceps extract 249

Individual Drug Interactions

The ingredients in Ultra Cordyceps 750 mg interact with 249 drugs. Click any drug to see the details.

1 of the 1 ingredient in Ultra Cordyceps 750 mg interact with drugs. Each result below shows which ingredient is responsible. Cordyceps extract

Each ingredient & the kinds of drugs it affects

For each ingredient in Ultra Cordyceps 750 mg with known interactions, here are the types of medications it can affect. Open any type for the detail — or search your exact drug in the checker above.

Cordyceps extract3 drug types · 249 drugs

Anticoagulant/Antiplatelet Drugs

Theoretically, cordyceps may increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.
In vitro and animal research suggests that cordyceps extract inhibits platelet aggregation and function. However, this interaction has not been reported in humans.

Likelihood Possible Evidence D
Immunosuppressants

Theoretically, concurrent use of cordyceps might interfere with immunosuppressive therapy.
Animal and in vitro research suggests that cordyceps stimulates the immune system. However, limited clinical research suggests that taking cordyceps may lower the necessary therapeutic dose of the immunosuppressant cyclosporine, which suggests that cordyceps may have an immunosuppressive effect.

Likelihood Possible Evidence B
Testosterone

Theoretically, concurrent use of cordyceps and testosterone might have additive effects.
Animal research suggests that cordyceps can increase testosterone levels. The clinical significance of this finding is unclear.

Likelihood Possible Evidence D
Cordyceps extract full monograph & interactions
The maker

Brand information

Manufacturer and brand details for Ultra Cordyceps 750 mg, from the product label.

Doctor's Best

See all Doctor's Best products
Name
Doctor's Best, Inc.
State
California
ZipCode
92612
Phone Number
(800) 777-2474
Web Address
www.drbvitamins.com
Pharmacist Counseling Corner

Ultra Cordyceps 750 mg by Doctor's Best: Common Questions

Does Ultra Cordyceps 750 mg by Doctor's Best interact with any medications?
Yes. Based on its ingredients, Ultra Cordyceps 750 mg has a known interaction with 249 medications. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Ultra Cordyceps 750 mg contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism 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.
Does cordyceps actually boost athletic performance?
The evidence suggests it's probably not effective for that. Despite being marketed for endurance and strength, research doesn't support cordyceps as a reliable performance enhancer.
Is it safe to take while pregnant or breastfeeding?
No—there isn't enough safety data during pregnancy or breastfeeding, so it's best avoided in both. Talk with your doctor about what would be appropriate for you.
What side effects has cordyceps caused in studies?
The most common ones are mild: abdominal discomfort, constipation, and diarrhea. They were uncommon, and taking it with food may help. There's one rare case report of liver inflammation, though it's unclear if cordyceps was the cause.
What is cordyceps and why is it in this product?
Cordyceps is a fungus used traditionally in Chinese medicine. This product concentrates its extract to 750 mg per capsule, marketed for general wellness—though specific claims aren't well supported by evidence.
How long can I safely take this supplement?
Cordyceps appears well tolerated for up to a year in studies, but long-term safety data is limited. It's worth discussing with your doctor if you plan to take it regularly.

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.

Ultra Cordyceps 750 mg label
Go deeper

The Full Monographs Behind Ultra Cordyceps 750 mg’s Ingredients

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

Herb & supplement monograph

Cordyceps

Interacts with 249 drugs

Cordyceps is a fungus used in traditional Chinese medicine for energy, exercise performance, and lung and immune support. Human research is limited and mostly low quality, so its benefits ar...

Read the full Cordyceps monograph →
Sources

Sources & How We Checked

Ultra Cordyceps 750 mg'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 14 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.

Cordyceps 14 references
  1. Zhu JS, Halpern GM, Jones K. The scientific rediscovery of an ancient Chinese herbal medicine: Cordyceps sinensis: part I. J Altern Complement Med 1998;4:289-303.
  2. Zhu JS, Halpern GM, Jones K. The scientific rediscovery of a precious ancient Chinese herbal regimen: Cordyceps sinensis: part II. J Altern Complement Med 1998;4:429-57.
  3. Chen YJ, Shiao MS, Lee SS, Wang SY. Effect of Cordyceps sinensis on the proliferation and differentiation of human leukemic U937 cells. Life Sci 1997;60:2349-59. PubMed
  4. Zhao Y. [Inhibitory effects of alcoholic extract of Cordyceps sinensis on abdominal aortic thrombus formation in rabbits]. Chung Hua I Hsueh Tsa Chih (Taipei) 1991;71:612-5, 42.
  5. Chen GZ, Chen GL, Sun T, et al. Effects of Cordyceps sinensis on murine T lymphocyte subsets. Chin Med J (English) 1991;104:4-8.
  6. Zhu XY, Yu HY. [Immunosuppressive effect of cultured Cordyceps sinensis on cellular immune response]. Chung Hsi I Chieh Ho Tsa Chih 1990;10:485-7, 454.
  7. Hsu, C. C., Huang, Y. L., Tsai, S. J., Sheu, C. C., and Huang, B. M. In vivo and in vitro stimulatory effects of Cordyceps sinensis on testosterone production in mouse Leydig cells. Life Sci 9-5-2003;73(16):2127-2136. PubMed
  8. Ikumoto, T., Sasaki, S., Namba, H., Toyama, R., Moritoki, H., and Mouri, T. [Physiologically active compounds in the extracts from tochukaso and cultured mycelia of Cordyceps and Isaria]. Yakugaku Zasshi 1991;111(9):504-509. PubMed
  9. Wu, T. N., Yang, K. C., Wang, C. M., Lai, J. S., Ko, K. N., Chang, P. Y., and Liou, S. H. Lead poisoning caused by contaminated Cordyceps, a Chinese herbal medicine: two case reports. Sci.Total Environ. 4-5-1996;182(1-3):193-195. PubMed
  10. Hong T, Zhang M, Fan J. Cordyceps sinensis (a traditional Chinese medicine) for kidney transplant recipients (Review). Cochrane Database Syst Rev. 2015;(10):CD009698. doi: 10.1002/14651858.CD009698.pub2.
  11. Zhang HW, Lin ZX, Tung YS, Kwan TH, Mok CK, Leung C, Chan LS. Cordyceps sinensis (a traditional Chinese medicine) for treating chronic kidney disease (Review). Cochrane Database Syst Rev. 2014;(12):CD008353. doi: 10.1002/14651858.CD008353.pub2. PubMed
  12. Bee Yean O, Zoriah A. Efficacy of Cordyceps sinensis as an adjunctive treatment in hemodialysis patients: a systematic review and Meta-analysis. J Tradit Chin Med. 2019;39(1):1-14.
  13. Thurian D, Montani M, Stickel F. Drug-induced, mixed-type hepatitis following ingestion of Cordyceps sinensis. Int J Clin Pharmacol Ther 2022;60(2):115-120. PubMed
  14. Yu X, Mao Y, Shergis JL, et al. Effectiveness and safety of oral Cordyceps sinensis on stable COPD of GOLD stages 2-3: Systematic review and meta-analysis. Evid Based Complement Alternat Med. 2019;2019:4903671.

See these in context on the Cordyceps monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

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.

© 2021 Therapeutic Research Center, LLC

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