Drug & supplement interaction

Orchic Extract + Pembrolizumab

Pembrolizumab brand name: Keytruda.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Orchic Extract and Pembrolizumab 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

Orchic Extract and Pembrolizumab

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 Pembrolizumab and Orchic Extract 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 Orchic Extract at all — not against Pembrolizumab, 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.

Orchic Extract safety at a glance

Orchic Extract overall Use caution Human safety and effectiveness data are very limited, and animal-tissue products carry quality and contamination concerns.
Pregnancy Avoid There is no safety data, so it should be avoided during pregnancy.
Breastfeeding Avoid There is no safety data, so it should be avoided while breastfeeding.

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

Still wondering about combining Pembrolizumab and Orchic Extract? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Pembrolizumab’s Own FDA Label Lists

This is not an interaction — none of it involves Orchic Extract. These are the most notable effects listed in the ADVERSE REACTIONS section of Pembrolizumab’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 10 of them are worth acting on rather than waiting out — marked below.

  • Low magnesium Worth acting on
  • A change in thyroid levels Worth acting on
  • Trouble swallowing Worth acting on
  • High potassium Worth acting on
  • Low sodium Worth acting on
  • Low potassium Worth acting on
  • A heart attack Worth acting on
  • Blood clots Worth acting on
  • Heart failure Worth acting on
  • High blood sugar Worth acting on

Showing the 10 most notable of 57 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Pembrolizumab. Read the label on DailyMed › Where a percentage is shown, it is the share of 100,432 voluntary FDA FAERS reports for Pembrolizumab that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Orchic Extract’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Orchic Extract side to compare — that is a limit of the record, not a statement that Orchic Extract has no side effects.

Everything else you take

See Every Supplement That Interacts With Pembrolizumab

This page covers Orchic Extract only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Pembrolizumab page lists 1 supplement it has a documented interaction with, worst first, each one explained.

The most serious there right now: American Pawpaw (minor).

By severity: 1 minor.

From our pharmacist’s overview on the Pembrolizumab page

“For a drug used against so many different cancers, pembrolizumab (Keytruda) has a remarkably short supplement file. Just one ingredient appears on it, American pawpaw, and even that lone entry is rated minor and judged unlikely to cause real trouble.”

Reviewed by 2 · Jul 18, 2026

Open the Pembrolizumab interaction page

One more smart check

Taking Orchic Extract as Part of a Dietary Supplement Product? Check It for Interactions

We hold 177 real supplement products containing Orchic Extract, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Orchic Extract. Even though Orchic Extract itself has no known interaction with Pembrolizumab, 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 Orchic Extract and Pembrolizumab 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 Orchic Extract
Top half

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

29 days ago today
Medication Pembrolizumab
Top half

#886 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 Orchic Extract reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Orchic Extract and Pembrolizumab records this page draws on were last updated July 10, 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 Orchic Extract

What is Orchic Extract?

  • Low testosterone or male vitality
  • Sexual performance and libido support
  • Athletic performance and muscle building
  • General 'glandular' health support

Orchic extract is a glandular supplement made from the testicle tissue of animals, usually cattle. It is marketed for testosterone and male vitality, but there is essentially no reliable human evidence that it works, and quality and safety standards for animal-derived glandulars vary widely. Talk to your pharmacist or doctor before using it, and avoid it during pregnancy and breastfeeding.

Testicular tissue (testis) from cattle or other animals · Capsules, tablets, powders (often in glandular supplement blends)

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

Orchic Extract: dosing

There is no established or standardized dose for orchic extract. Because it has not been properly studied, no amount has been shown to be safe or effective.If you choose to use a product, follow the dose printed on the label and do not exceed it.

From our Orchic Extract monograph — the full record covers uses, side effects and every documented interaction.

Read the full Orchic Extract monograph & all interactions
Medication

About Pembrolizumab Injection

What Is Pembrolizumab Injection Used For?

Brand name: Keytruda

Pembrolizumab is used to treat a wide range of cancers — including melanoma (skin cancer), lung cancer, head and neck cancers, bladder cancer, certain colorectal cancers, cervical cancer, kidney cancer, liver cancer, and many others. It can be used alone or combined with chemotherapy, depending on the cancer type and stage.

For some cancers, it's given before surgery (neoadjuvant), after surgery (adjuvant), or both — to help shrink tumors or reduce the chance the cancer comes back. Some uses require a lab test to confirm your tumor has certain markers (like PD-L1 expression) before starting treatment.

Most-Reported Side Effects for Pembrolizumab

From FAERS, the FDA’s public side-effect reporting system (0 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Malignant neoplasm progression 12,012 reports
Diarrhea 5,719 reports
Fatigue 5,113 reports
Fever 3,870 reports
Rash 3,719 reports
See full Pembrolizumab Injection drug information
Keep checking

Other Drugs & Orchic Extract

Browse every other medication we’ve checked against Orchic Extract — 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
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked Orchic Extract against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Orchic Extract list.

See the full Orchic Extract interactions page
See every supplement checked against Pembrolizumab, ranked by severity
Evidence & sources

Orchic Extract References

The 2 references that drive our Orchic Extract 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. ORCHIC PMG (Protomorphogen). Natural Health Cod. www.nbizz.com/naturalhealthdoc/listings/184.html (Accessed 9 November 2000).
  2. Lewis CJ. Letter to reiterate certain public health and safety concerns to firms manufacturing or importing dietary supplements that contain specific bovine tissues. FDA. Available at: www.cfsan.fda.gov/~dms/dspltr05.html.

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 Orchic Extract and Pembrolizumab Together: Common Questions

Is it safe to take Orchic Extract with Pembrolizumab?
We do not list a known interaction between Orchic Extract and Pembrolizumab. 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 Pembrolizumab interact with any supplements?
Yes. Pembrolizumab has documented interactions with 1 supplement in our database — Orchic Extract is not one of them. The Pembrolizumab interaction page linked on this page lists every one, ranked by severity.

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

Where next

Keep Exploring

Orchic Extract monograph Uses, safety profile, and every drug interaction in one place Pembrolizumab Injection drug information The full plain-English guide to this medication Pembrolizumab supplement interactions Every supplement checked against Pembrolizumab, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Pembrolizumab and Orchic Extract?

Our pharmacists answer your medication & supplement questions — free.

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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.