Drug & supplement interaction

7-keto-dhea + Bevacizumab

Bevacizumab brand name: Avastin.

No Known Interaction
The bottom line No known interaction

We found no known interaction between 7-keto-dhea and Bevacizumab in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

7-keto-dhea and Bevacizumab

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Bevacizumab and 7-keto-dhea in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for 7-keto-dhea at all — not against Bevacizumab, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

7-keto-dhea safety at a glance

7-keto-dhea overall Use caution Short-term use appears generally tolerated in small studies, but long-term safety is not well established.
Pregnancy Avoid Not enough safety data, and hormone-related supplements are best avoided during pregnancy.
Breastfeeding Avoid No reliable safety information is available, so it is best avoided while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Bevacizumab and 7-keto-dhea? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What 7-keto-dhea Itself Has Been Linked To

This is not an interaction — nothing below involves Bevacizumab. It is the side-effect record for 7-keto-dhea on its own, from the licensed Natural Medicines monograph. If something new turns up after you add 7-keto-dhea, this list is the first place to look.

  • Dizziness Additional detail

    “Orally, 7-keto-DHEA has been associated with one report of vertigo in one clinical study.”

    7-keto-dhea · Natural Medicines adverse-effect record, reported in vertigo.

    1 source cited
    1. 92185. Zenk JL, Frestedt JL, Kuskowski MA. HUM5007, a novel combination of thermogenic compounds, and 3-acetyl-7-oxo-dehydroepiandrosterone: each increases the resting metabolic rate of overweight adults. J Nutr Biochem 2007;18(9):629-34. PubMed
  • Nausea Additional detail

    “Orally, 7-keto-DHEA has been associated with two reports of nausea in one clinical study.”

    7-keto-dhea · Natural Medicines adverse-effect record, reported in nausea and vomiting.

    1 source cited
    1. 92185. Zenk JL, Frestedt JL, Kuskowski MA. HUM5007, a novel combination of thermogenic compounds, and 3-acetyl-7-oxo-dehydroepiandrosterone: each increases the resting metabolic rate of overweight adults. J Nutr Biochem 2007;18(9):629-34. PubMed

Everything above comes from the Natural Medicines adverse-effect record for 7-keto-dhea — expand a row for the licensed statement it rests on. We haven’t matched Bevacizumab to its FDA label in our system yet, so we can’t compare its own side-effect list here — the leaflet that comes with your prescription is the authoritative list for Bevacizumab.

Everything else you take

See Every Supplement That Interacts With Bevacizumab

This page covers 7-keto-dhea only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Bevacizumab page lists 17 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).

By severity: 1 major · 7 moderate · 9 minor.

From our pharmacist’s overview on the Bevacizumab page

“Anyone receiving bevacizumab (Avastin) is fighting a serious cancer, often reaching for fiber supplements or charcoal to settle treatment-related stomach trouble, and that is exactly where this list deserves genuine attention. Every one of the 17 entries on file works through absorption, and the single major-rated interaction, activate…”

Reviewed by 2 · Jul 18, 2026

Open the Bevacizumab interaction page

One more smart check

Taking 7-keto-dhea as Part of a Dietary Supplement Product? Check It for Interactions

We hold 207 real supplement products containing 7-keto-dhea, each one broken down to its full ingredient list — and combination products often carry several ingredients besides 7-keto-dhea. Even though 7-keto-dhea itself has no known interaction with Bevacizumab, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where 7-keto-dhea and Bevacizumab Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement 7-keto-dhea
Steady interest

#862 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Bevacizumab
Top half

#997 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every 7-keto-dhea reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The 7-keto-dhea and Bevacizumab records this page draws on were last updated July 11, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About 7-keto-dhea

What is 7-keto-dhea?

7-keto-dhea
  • Weight loss and fat burning
  • Boosting metabolism
  • Supporting muscle mass
  • Improving body composition
  • Anti-aging support

7-keto-DHEA is a lab-made metabolite of the hormone DHEA that is marketed mainly for weight loss and a faster metabolism. Unlike DHEA, it is not thought to convert into estrogen or testosterone, but the evidence that it helps with weight or metabolism is limited and comes from small studies. Talk with your pharmacist or doctor before trying it, especially if you have any health conditions.

Not applicable (a manufactured metabolite of DHEA) · Capsules, tablets, powders (often in weight-loss or 'metabolism' blends)

An interaction check asks whether these two react with each other — it does not ask whether 7-keto-dhea is a good idea for someone in your situation. Here is what our 7-keto-dhea record says about it on its own.

7-keto-dhea: dosing

There is no official or well-established standardized dose for 7-keto-DHEA. Doses used in studies and on product labels have varied, and we cannot recommend a specific amount.If you choose to use it, follow the directions on the product label and do not exceed the recommended amount.

From our 7-keto-dhea monograph — the full record covers uses, side effects and every documented interaction.

Read the full 7-keto-dhea monograph & all interactions
Medication

About Bevacizumab Injection

What Is Bevacizumab Injection Used For?

Brand name: Avastin

Bevacizumab injection is used to treat multiple types of advanced or metastatic cancers, most often in combination with chemotherapy. Avastin is approved for metastatic colorectal cancer (when combined with specific fluorouracil-based chemotherapy regimens), non-squamous non-small cell lung cancer (first-line, with carboplatin and paclitaxel), recurrent glioblastoma in adults, metastatic renal cell carcinoma (with interferon alfa), persistent or metastatic cervical cancer, and hepatocellular carcinoma (liver cancer, in combination with atezolizumab for patients who have not yet received systemic therapy).

Avastin is also approved for epithelial ovarian, fallopian tube, or primary peritoneal cancer — including stage III/IV disease after surgery, platinum-resistant recurrent disease, and platinum-sensitive recurrent disease — each with specific chemotherapy partner regimens. Note that Avastin is not indicated for adjuvant (preventive post-surgery) treatment of colon cancer.

See full Bevacizumab Injection drug information
Keep checking

Other Drugs & 7-keto-dhea

Browse every other medication we’ve checked against 7-keto-dhea — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
No interaction 2,829 drugs checked — show the list
Evidence & sources

7-keto-dhea References

The 2 references that drive our 7-keto-dhea monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. Davidson M, Marwah A, Sawchuk RJ, et al. Safety and pharmacokinetic study with escalating doses of 3-acetyl-7-oxo-dehydroepiandrosterone in healthy male volunteers. Clin Invest Med 2000;23:300-10..
  2. Zenk JL, Frestedt JL, Kuskowski MA. HUM5007, a novel combination of thermogenic compounds, and 3-acetyl-7-oxo-dehydroepiandrosterone: each increases the resting metabolic rate of overweight adults. J Nutr Biochem 2007;18(9):629-34. PubMed

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking 7-keto-dhea and Bevacizumab Together: Common Questions

Is it safe to take 7-keto-dhea with Bevacizumab?
We do not list a known interaction between 7-keto-dhea and Bevacizumab. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Does Bevacizumab interact with any supplements?
Yes. Bevacizumab has documented interactions with 17 supplements in our database — 7-keto-dhea is not one of them. The Bevacizumab interaction page linked on this page lists every one, ranked by severity.

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

Still Have a Question About Bevacizumab and 7-keto-dhea?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.