Drug & supplement interaction

Black Pepper + Galcanezumab-Gnlm

Galcanezumab-Gnlm brand name: Emgality.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 13, 2026
The bottom line No known interaction

We found no known interaction between Black Pepper and Galcanezumab-Gnlm 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. Additionally, although there is no interaction, the two are separately associated with some of the same side effects, which would make a new symptom harder to attribute to one or the other.

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Interaction report

Black Pepper and Galcanezumab-Gnlm

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 Galcanezumab-Gnlm and Black Pepper 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.

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.

Black Pepper safety at a glance

Black Pepper overall Generally safe Generally safe as a food spice; concentrated supplements should be used more cautiously.
Pregnancy Likely Safe When used orally in amounts commonly found in foods. Read the full pregnancy detail
Breastfeeding Likely Safe When used orally in amounts commonly found in foods. There is insufficient reliable information available about the safety of black pepper when used in medicina... Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Galcanezumab-Gnlm and Black Pepper? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
Keep it in perspective

Black Pepper Does Interact With Other Medications

Black Pepper has 976 moderate, 43 minor known drug interactions in our database — Galcanezumab-Gnlm isn’t one of them. If you take anything else, check it against the full list below.

Moderate 976 Minor 43 No known interaction 1,811 (incl. Galcanezumab-Gnlm)
Taking anything else?

Check Another of Your Medications Against Black Pepper

Covers the 2,830 medications we’ve checked against Black Pepper. Pick one to open its full report.

What to actually watch for

No Interaction Found — But Data Suggests Black Pepper and Galcanezumab-Gnlm May Share a Side Effect

This is not an interaction. Neither one changes how your body handles the other, and nothing here says they react together. What our sources do show is that each has separately been linked to the effects below — so taking both can make those effects more likely to turn up, and harder to pin on one or the other if they do. One of them is worth acting on rather than waiting out — marked below.

  • An allergic reaction Worth acting on Additional detail

    Black Pepper

    “Orally, black pepper seems to be well tolerated when used in the amounts found in food or when taken as a medicine as a single dose. Topically and as aromatherapy, black pepper oil seems to be well tolerated.

    Most Common Adverse Effects:

    Orally: Burning aftertaste, dyspepsia, and reduced taste perception.

    Inhalation: Cough.

    Serious Adverse Effects (Rare):

    Orally: Allergic reaction in sensitive individuals.”

    Black Pepper · Natural Medicines adverse-effect record, reported in cough.

    Galcanezumab-Gnlm

    Listed in the ADVERSE REACTIONS section of the FDA label for Galcanezumab-Gnlm. Read the label on DailyMed ›

Reported for Black Pepper but not commonly for Galcanezumab-Gnlm: a change in taste, stomach upset, swelling and eye irritation or redness.

Effects for Galcanezumab-Gnlm come from the ADVERSE REACTIONS section of its FDA label; effects for Black Pepper come from the Natural Medicines adverse-effect record, quoted above. Where a percentage is shown, it is the share of 31,311 voluntary FDA FAERS reports for Galcanezumab-Gnlm that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Wording is matched across sources by our own clinical vocabulary, so treat this as a prompt to pay attention, not a diagnosis.

Special populations

Black Pepper in Pregnancy & Breastfeeding

Pregnancy Likely Safe

When used orally in amounts commonly found in foods.

Pregnancy Likely Unsafe

When used orally in large amounts. Black pepper might have abortifacient effects; contraindicated. There is insufficient reliable information available about the safety of topical pepper when used during pregnancy.

Lactation Likely Safe

When used orally in amounts commonly found in foods. There is insufficient reliable information available about the safety of black pepper when used in medicinal amounts during breast-feeding.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

Overlapping uses

What Galcanezumab-Gnlm Is Prescribed For, and What Black Pepper Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Galcanezumab-Gnlm is a prescription medicine with approved uses on its FDA label. Black Pepper is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Galcanezumab-Gnlm is prescribed for: Emgality (galcanezumab-gnlm) is used in adults for two conditions. First, it is taken on an ongoing monthly basis to prevent migraines — meaning it helps reduce how often migraines happen, rather than stopping a migraine that has already started. Second, Emgality is used to treat episodic cluster headache — a pattern of intense, recurring headaches that come in cycles. It is started at the beginning of a cluster period and continued monthly until the cluster period ends.

Black Pepper has been studied for:

  • Headache studied, not established Black Pepper has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Black Pepper for headache

    Although there has been interest in using oral black pepper for headache, there is insufficient reliable information about the clinical effects of black pepper for this purpose.

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Galcanezumab-Gnlm on your own; if you are taking Black Pepper for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Black Pepper or Galcanezumab-Gnlm

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Black Pepper or Galcanezumab-Gnlm, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

One more smart check

Taking Black Pepper as Part of a Dietary Supplement Product? Check It for Interactions

We hold 5,528 real supplement products containing Black Pepper, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Black Pepper. Even though Black Pepper itself has no known interaction with Galcanezumab-Gnlm, 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 Black Pepper and Galcanezumab-Gnlm 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 Black Pepper
Top 5%

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

29 days ago today
Medication Galcanezumab-Gnlm
Top 25%

#688 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 Black Pepper reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Black Pepper and Galcanezumab-Gnlm 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 Black Pepper

What is Black Pepper?

Black Pepper
  • Flavoring and culinary use
  • Digestive complaints like bloating and indigestion
  • Boosting absorption of other supplements
  • Antioxidant and anti-inflammatory support
  • Cold and congestion remedies

Black pepper is a common kitchen spice that is generally safe in the amounts used in food. Its extract, piperine, is mostly added to supplements to help the body absorb other ingredients (like curcumin from turmeric). Strong human evidence for black pepper treating specific health conditions is limited, so use supplement-strength products with care and check with your pharmacist.

Piper nigrum · Piperaceae · Dried fruit (peppercorn) and its extract piperine · Whole or ground spice, capsules, standardized piperine extracts (often labeled BioPerine), essential oil

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

Black Pepper: dosing

There is no official standardized dose of black pepper or piperine for any health condition. In supplements, piperine is often included in small amounts mainly to improve absorption of other ingredients.If you choose a black pepper or piperine product, follow the directions on the label and do not exceed the suggested amount.

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

Read the full Black Pepper monograph & all interactions
Medication

About Galcanezumab-gnlm Injection

What Is Galcanezumab-gnlm Injection Used For?

Brand name: Emgality

Emgality (galcanezumab-gnlm) is used in adults for two conditions. First, it is taken on an ongoing monthly basis to prevent migraines — meaning it helps reduce how often migraines happen, rather than stopping a migraine that has already started.

Second, Emgality is used to treat episodic cluster headache — a pattern of intense, recurring headaches that come in cycles. It is started at the beginning of a cluster period and continued monthly until the cluster period ends.

Most-Reported Side Effects for Galcanezumab-Gnlm

From FAERS, the FDA’s public side-effect reporting system (31,311 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Injection site pain 7,524 reports
Migraine 3,057 reports
Underdose 2,917 reports
Headache 2,448 reports
Injection site haemorrhage 1,608 reports
See full Galcanezumab-gnlm Injection drug information
Keep checking

Other Drugs & Black Pepper

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

0Major
976Moderate
43Minor
1,810No known interaction
976 Moderate 43 Minor 1,810 No interaction
Moderate

976 interactions

Showing 60 of 976 moderate interactions — see all 976 on the Black Pepper page.

Minor

43 interactions

No interaction 1,810 drugs checked — show the list

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

Showing the 60 most looked-up of 1,810 medications checked with no known interaction — see the full Black Pepper list.

See the full Black Pepper interactions page
See every supplement checked against Galcanezumab-Gnlm, ranked by severity
Evidence & sources

Black Pepper References

The 29 references that drive our Black Pepper 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. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Food, Drugs and Cosmetics. 2nd ed. New York, NY: John Wiley & Sons, 1996.
  2. Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
  3. Bano G, Amla V, Raina RK, et al. The effect of piperine on pharmacokinetics of phenytoin in healthy volunteers. Planta Med 1987;53:568-9. PubMed
  4. Bano G, et al. Effect of piperine on bioavailability and pharmacokinetics of propranolol and theophylline in healthy volunteers. Eur J Clin Pharmacol 1991;41;615-7. PubMed
  5. Cohle SD, Trestrail JD III, Graham MA, et al. Fatal pepper aspiration. Am J Dis Child 1988;142:633-6. PubMed
  6. Bhardwaj RK, Glaeser H, Becquemont L, et al. Piperine, a major constituent of black pepper, inhibits human P-glycoprotein and CYP3A4. J Pharmacol Exp Ther 2002;302:645-50. PubMed
  7. Velpandian T, Jasuja R, Bhardwaj RK, et al. Piperine in food: interference in the pharmacokinetics of phenytoin. Eur J Drug Metab Pharmacokinet 2001;26:241-7. PubMed
  8. Pattanaik S, Hota D, Prabhakar S, et al. Pharmacokinetic interaction of a single dose of piperine with steady-state carbamazepine in epilepsy patients. Phytother Res 2009;23:1281-6.
  9. Munakata, M., Kobayashi, K., Niisato-Nezu, J., Tanaka, S., Kakisaka, Y., Ebihara, T., Ebihara, S., Haginoya, K., Tsuchiya, S., and Onuma, A. Olfactory stimulation using black pepper oil facilitates oral feeding in pediatric patients receiving long-term en
  10. Myers, B. M., Smith, J. L., and Graham, D. Y. Effect of red pepper and black pepper on the stomach. Am J Gastroenterol 1987;82(3):211-214.
  11. Raghavendra, R. H. and Naidu, K. A. Spice active principles as the inhibitors of human platelet aggregation and thromboxane biosynthesis. Prostaglandins Leukot.Essent.Fatty Acids 2009;81(1):73-78. PubMed
  12. Subehan, Usia, T., Kadota, S., and Tezuka, Y. Mechanism-based inhibition of human liver microsomal cytochrome P450 2D6 (CYP2D6) by alkamides of Piper nigrum. Planta Med 2006;72(6):527-532.
  13. Kasibhatta, R. and Naidu, M. U. Influence of piperine on the pharmacokinetics of nevirapine under fasting conditions: a randomised, crossover, placebo-controlled study. Drugs R.D. 2007;8(6):383-391. PubMed
  14. Usia, T., Iwata, H., Hiratsuka, A., Watabe, T., Kadota, S., and Tezuka, Y. CYP3A4 and CYP2D6 inhibitory activities of Indonesian medicinal plants. Phytomedicine. 2006;13(1-2):67-73. PubMed
  15. Mujumdar, A. M., Dhuley, J. N., Deshmukh, V. K., Raman, P. H., Thorat, S. L., and Naik, S. R. Effect of piperine on pentobarbitone induced hypnosis in rats. Indian J Exp.Biol. 1990;28(5):486-487.

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 Black Pepper and Galcanezumab-Gnlm Together: Common Questions

Is it safe to take Black Pepper with Galcanezumab-Gnlm?
We do not list a known interaction between Black Pepper and Galcanezumab-Gnlm. 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.
Do Black Pepper and Galcanezumab-Gnlm have any of the same side effects?
Yes — our sources link each of them separately to one of the same effects. That is not an interaction: neither changes how your body handles the other. It does mean that if one of those effects turns up, it can be harder to tell which one is behind it. They are listed on this page with the source behind each.
Are Black Pepper and Galcanezumab-Gnlm used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Black Pepper in each. That is a conversation for your prescriber, especially if Galcanezumab-Gnlm is being adjusted to a target.
Does Black Pepper interact with any other medications?
Yes. Black Pepper has 1,019 documented drug interactions in our database — Galcanezumab-Gnlm is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

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

Where next

Keep Exploring

Black Pepper monograph Uses, safety profile, and every drug interaction in one place Galcanezumab-gnlm Injection drug information The full plain-English guide to this medication Galcanezumab-Gnlm supplement interactions Every supplement checked against Galcanezumab-Gnlm, 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 29 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

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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.