Herb & supplement monograph

Serrapeptase Drug Interactions, Uses, Effectiveness, Safety & More

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Reviewed by licensed pharmacists Sourced from Natural Medicines

Serrapeptase Drug Interactions: The Bottom Line

From the HelloPharmacist Editorial Team · Updated July 2026

Based on the available evidence, the overall risk of a clinically significant Serrapeptase drug interaction appears low for most people. None of the listed interactions are rated major, and every one traces back to a single theoretical concern that has not been confirmed in human studies.

Interactions deserving the most attention

The interactions that deserve the most attention involve anticoagulant and antiplatelet drugs, often called blood thinners. Lab research shows serrapeptase can break down fibrin, a protein involved in blood clotting, so combining it with these medicines could in theory raise the chance of bruising or bleeding. Because bleeding risk is closely watched in people on these drugs, this pairing warrants extra care even though the evidence comes from lab studies rather than human trials.

What the rest of the list means

Although the number of medications on the list looks large, nearly all of them are there because of this one theoretical bleeding concern. The evidence is graded as possible, meaning it rests on lab research rather than documented problems in people. A long list here reflects caution, not proof that each combination is harmful.

Check your medications against Serrapeptase

Based on HelloPharmacist’s Serrapeptase interaction data and reviewed under our editorial standards.

Interaction report

Drugs that interact with Serrapeptase

122 medications have a known interaction with Serrapeptase, graded by severity. Select any drug for the full evidence-based detail.

2,830 drugs
AbciximabReoPro› AbrocitinibCibinqo› AcenocoumarolSintrom› Acetaminophen, AspirinGemnisyn› Acetaminophen, Aspirin, CaffeineExcedrin, Excedrin Extra Strength, Excedrin Migraine› Acetaminophen, IbuprofenCombogesic› Acetylsalicylic AcidEntrophen› Alteplase, TpaActilyse, Activase› Aluminum Hydroxide, Aspirin, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #2› Aluminum Hydroxide, Aspirin, Magnesium HydroxideAscriptin› Anacaulase-bcdbNexoBrid› AnagrelideAgrylin› AnisindioneMiradon› Antithrombin IiiThrombate III› ApixabanEliquis› ArgatrobanArgatroban› AspirinAngettes 75, ASA, Asaphen, Aspirin, Caprin, Cartia +8 more› Aspirin, Aluminum Hydroxide, Codeine Phosphate, Magnesium HydroxideAscriptin Codeine #3› Aspirin, ButalbitalAxotal› Aspirin, Butalbital, CaffeineFiorinal› Aspirin, Butalbital, Caffeine, Codeine PhosphateFiorinal w/ Codeine› Aspirin, Butalbital, Caffeine, PhenacetinMarnal› Aspirin, CaffeineAnacin› Aspirin, Caffeine, Codeine PhosphateAnacin w/ Codeine› Aspirin, Caffeine, Dihydrocodeine BitartrateSynalgos DC› Aspirin, Caffeine, Dover's PwdAcedoval, Dovacet› Aspirin, Caffeine, HydrocodoneDamason-P› Aspirin, Caffeine, Isobutylallylbarbituric Acid, PhenacetinLanorinal› Aspirin, Caffeine, OrphenadrineInvagesic, Invagesic Forte, Norgesic, Norgesic Forte, Orphengesic, Orphengesic Forte› Aspirin, Caffeine, Phenacetin, PropoxypheneMargesic Comp. 65›
Read The List Like a Pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

  • Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
  • Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
  • Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
  • No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

  • Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
  • Probable. Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • Possible. Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
  • Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

  • Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
  • Each drug listed above links to the full report for that exact Serrapeptase combination — clinical detail, likelihood, evidence level, and citations.
  • Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.
The big picture

The kinds of drugs Serrapeptase affects

Every type of medication (drug category) Serrapeptase is known to interact with. Open any category for the detail — or search your exact drug in the checker above.

All 1 drug category Serrapeptase interacts with
Anticoagulant/antiplatelet Drugs
Anticoagulant/Antiplatelet Drugs

Theoretically, taking serrapeptase with drugs that have antiplatelet or anticoagulant effects might increase the risk of bruising and bleeding.
In vitro research shows that serrapeptase has fibrinolytic activity.

Likelihood Possible Evidence D
Monograph

Serrapeptase: Uses, Safety & Side Effects

The bottom line

Serrapeptase is an enzyme marketed to reduce inflammation, swelling, pain, and mucus, but the human evidence is limited and mostly low quality. If you want to try it, choose an enteric-coated product, follow the label, and check with your pharmacist or doctor first—especially if you are pregnant, breastfeeding, or take other medicines.

Part used
Enzyme produced by bacteria (Serratia species) found in silkworms
Common forms
Tablets, capsules (often enteric-coated)
People commonly use it for
  • Inflammation and swelling
  • Sinus and respiratory congestion
  • Pain after surgery or injury
  • Joint and back pain
  • Thinning mucus

Popular and traditional uses — not proof it works. See “Uses & effectiveness” below for the evidence.

Safety at a glance
OverallUse caution

Generally tolerated short-term, but long-term safety is not well studied.

PregnancyInsufficient reliable information

Insufficient reliable information available; avoid using.

Read the full pregnancy detail
BreastfeedingInsufficient reliable information

Insufficient reliable information available; avoid using.

Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center). Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

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Overview

Serrapeptase (also called serratiopeptidase) is an enzyme that breaks down proteins. It was originally found in bacteria (Serratia species) that live in the gut of silkworms, where it helps the moth dissolve its cocoon. The supplement sold today is made by growing these bacteria in a lab and purifying the enzyme.

Because it is not a plant, serrapeptase is not an herb. It is a so-called "proteolytic" (protein-digesting) enzyme, similar in idea to bromelain from pineapple. It is sold as tablets and capsules, often with a special "enteric" coating meant to protect the enzyme from stomach acid.

People take serrapeptase hoping to ease inflammation, swelling, pain, and thick mucus. It has been used in some countries, especially in Japan and parts of Europe, for these purposes.

How it works

Serrapeptase is a proteolytic enzyme, meaning it breaks down proteins. Supporters believe this lets it dissolve damaged tissue, break up thick mucus, and reduce the build-up of fluid that causes swelling.

It is also proposed to lower inflammation and ease pain by affecting certain inflammatory signals in the body. Much of this is based on laboratory and animal research, and it is not fully proven in people.

One open question is how much active enzyme actually reaches the bloodstream after you swallow it, since stomach acid and digestion can break down proteins. Enteric coatings are used to try to protect the enzyme, but how well this works in real life is uncertain.

Effectiveness

Does Serrapeptase work?

Evidence overview · 21 uses evaluated
21 Insufficient evidence
How to read these evidence grades

Natural Medicines’ 7-point scale. We show each rating’s label word-for-word.

1EffectiveStrong, consistent evidence it works.
2Likely EffectiveGood evidence, though not yet conclusive.
3Possibly EffectiveSome evidence suggests a benefit.
4Possibly IneffectiveSome evidence it may not help.
5Likely IneffectiveFairly strong evidence it doesn’t help.
6IneffectiveStrong evidence it doesn’t work.
7Insufficient Reliable Evidence to RateToo little research to say either way.

For Serrapeptase, current evidence isn’t strong enough to rate any specific use. The conditions it has been studied for are listed below.

Also studied for 21 conditions — evidence insufficient to rate
Insufficient Reliable Evidence To Rate Asthma
Rating & evidence shown verbatim from Natural Medicines

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

Insufficient Reliable Evidence To Rate Atherosclerosis
Rating & evidence shown verbatim from Natural Medicines

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

Insufficient Reliable Evidence To Rate Back pain
Rating & evidence shown verbatim from Natural Medicines

Although there has been interest in using oral serrapeptase for back pain, there is insufficient reliable information about the clinical effects of serrapeptase for this purpose.

Insufficient Reliable Evidence To Rate Bronchiectasis
Rating & evidence shown verbatim from Natural Medicines

It is unclear if oral serrapeptase is beneficial in patients with bronchiectasis.

Insufficient Reliable Evidence To Rate Cardiovascular disease (CVD)
Rating & evidence shown verbatim from Natural Medicines

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

Insufficient Reliable Evidence To Rate Carpal tunnel syndrome
Rating & evidence shown verbatim from Natural Medicines

Although there has been interest in using oral serrapeptase for carpal tunnel syndrome, there is insufficient reliable information about the clinical effects of serrapeptase for this purpose.

Insufficient Reliable Evidence To Rate Chronic bronchitis
Rating & evidence shown verbatim from Natural Medicines

It is unclear if oral serrapeptase is beneficial in patients with chronic bronchitis.

Insufficient Reliable Evidence To Rate Diabetes
Rating & evidence shown verbatim from Natural Medicines

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

Insufficient Reliable Evidence To Rate Fibrocystic breast disease
Rating & evidence shown verbatim from Natural Medicines

Although there has been interest in using oral serrapeptase for fibrocystic breast disease, there is insufficient reliable information about the clinical effects of serrapeptase for this purpose.

Insufficient Reliable Evidence To Rate Fibromyalgia
Rating & evidence shown verbatim from Natural Medicines

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

Insufficient Reliable Evidence To Rate Inflammatory bowel disease (IBD)
Rating & evidence shown verbatim from Natural Medicines

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

Insufficient Reliable Evidence To Rate Laryngitis
Rating & evidence shown verbatim from Natural Medicines

It is unclear if oral serrapeptase is beneficial in patients with laryngitis.

Insufficient Reliable Evidence To Rate Migraine headache
Rating & evidence shown verbatim from Natural Medicines

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

Insufficient Reliable Evidence To Rate Osteoarthritis
Rating & evidence shown verbatim from Natural Medicines

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

Insufficient Reliable Evidence To Rate Osteoporosis
Rating & evidence shown verbatim from Natural Medicines

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

Insufficient Reliable Evidence To Rate Otitis media
Rating & evidence shown verbatim from Natural Medicines

Although there has been interest in using oral serrapeptase for otitis media, there is insufficient reliable information about the clinical effects of serrapeptase for this purpose.

Insufficient Reliable Evidence To Rate Pharyngitis
Rating & evidence shown verbatim from Natural Medicines

It is unclear if oral serrapeptase is beneficial in patients with pharyngitis.

Insufficient Reliable Evidence To Rate Postoperative swelling
Rating & evidence shown verbatim from Natural Medicines

It is unclear if oral serrapeptase is beneficial in patients with postoperative swelling.

Insufficient Reliable Evidence To Rate Rheumatoid arthritis (RA)
Rating & evidence shown verbatim from Natural Medicines

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

Insufficient Reliable Evidence To Rate Rhinosinusitis
Rating & evidence shown verbatim from Natural Medicines

It is unclear if oral serrapeptase is beneficial in patients with rhinosinusitis.

Insufficient Reliable Evidence To Rate Venous leg ulcers
Rating & evidence shown verbatim from Natural Medicines

Although there has been interest in using oral serrapeptase for venous leg ulcers, there is insufficient reliable information about the clinical effects of serrapeptase for this purpose.

Source & disclaimer. Effectiveness ratings and evidence summaries are provided by Natural Medicines (Therapeutic Research Center) and shown as licensed. Where Natural Medicines hasn’t rated a use, HelloPharmacist’s pharmacists may add their own reviewed rating and evidence (each such entry is labeled). This is educational information, not medical advice — talk with your pharmacist or doctor before starting, stopping, or changing a supplement.

Safety & precautions

Serrapeptase appears to be reasonably well tolerated in short-term use for most healthy adults, but its long-term safety has not been well studied.

Use extra caution if you have a bleeding disorder, are scheduled for surgery, or have a weakened immune system. People with a history of allergic reactions to supplements or enzymes should also be careful.

For pregnancy and breastfeeding, there is not enough safety information, so it is best to avoid serrapeptase during these times. Do not give it to children unless a doctor advises it. Always talk to your pharmacist or doctor before starting, especially if you take other medicines or have a chronic health condition.

Side effects

Reported side effects are usually mild and may include stomach upset, nausea, loss of appetite, diarrhea, or skin reactions.

More rarely, serrapeptase has been linked to allergic reactions, muscle or joint aches, and lung problems. Stop taking it and seek medical care right away if you notice trouble breathing, swelling of the face or throat, a widespread rash, or unusual bleeding or bruising.

Because it may affect blood clotting, watch for signs of bleeding such as easy bruising or nosebleeds, and tell your doctor.

Serrapeptase: Reported Adverse Effects

Documented safety reports on Serrapeptase from the evidence-graded Natural Medicines (TRC Healthcare) database, shown word-for-word from the licensed record.

Orally, serrapeptase seems to be well-tolerated.

Most Common Adverse Effects:

Orally: Epigastric pain, gastrointestinal upset, nausea.

Serious Adverse Effects (Rare):

Orally: Bullous pemphigoid

Reports by condition
Nausea and vomiting Gastrointestinal

Orally, some patients have reported experiencing epigastric pain, gastrointestinal upset, and nausea; however, these side effects appear to occur at the same rate as placebo.

  1. Mazzone A, Catalani M, Costanzo M, et al. Evaluation of Serratia peptidase in acute or chronic inflammation of otorhinolaryngology pathology: a multicentre, double-blind, randomized trial versus placebo. J Int Med Res 1990;18:379-88..
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.

Adverse-effects data: Natural Medicines, Therapeutic Research Center

Dosing

There is no official or well-established dose for serrapeptase. Products are often measured in enzyme "units" rather than simple milligrams, and these vary between brands.

The best approach is to follow the directions on the product label and not exceed them. Enteric-coated products are usually taken on an empty stomach, but check your specific label.

Because strength and quality differ between brands, and because dietary supplements are not tightly regulated, ask your pharmacist for help choosing a reputable product and a sensible amount.

Pregnancy & Breastfeeding

Serrapeptase & Pregnancy

Insufficient reliable information

Insufficient reliable information available; avoid using.

Serrapeptase & Breastfeeding

Insufficient reliable information

Insufficient reliable information available; avoid using.

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

Pregnancy & lactation ratings: Natural Medicines, Therapeutic Research Center

References & further reading

The 2 references that drive our Serrapeptase 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. Tachibana M, Mizukoshi O, Harada Y, et al. A multi-centre, double-blind study of serrapeptase versus placebo in post-antrotomy buccal swelling. Pharmatherapeutica 1984;3:526-30..
  2. Mazzone A, Catalani M, Costanzo M, et al. Evaluation of Serratia peptidase in acute or chronic inflammation of otorhinolaryngology pathology: a multicentre, double-blind, randomized trial versus placebo. J Int Med Res 1990;18:379-88.. PubMed
Keep reading

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.

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

Brand directory

Brands that make products with Serrapeptase

5 brands in our database make a supplement containing Serrapeptase.

Pharmacist Counseling Corner

Serrapeptase: Common Questions

What is Serrapeptase used for, and does it work?
People use Serrapeptase for a range of reasons, but according to the Natural Medicines database the current clinical evidence is insufficient to confirm it works for the specific conditions it has been studied for. See the graded list on this page, and talk to your pharmacist or doctor before relying on it for any condition.
Does Serrapeptase interact with prescription medications?
Yes. We list 122 medications with a known interaction with Serrapeptase. Use the checker above to see how Serrapeptase interacts with a specific drug.
How are Serrapeptase interactions rated?
Each interaction is graded major, moderate, or minor based on how clinically significant it is and the strength of the evidence behind it. Major interactions are the most serious and are best avoided, or used only under close professional supervision.
Is it safe to take Serrapeptase with my medications?
It depends on the specific medication. Some combinations are fine, while others call for monitoring, timing changes, or should be avoided. Check your exact drug above and confirm with your pharmacist or doctor before starting, stopping, or changing anything.
Where does this Serrapeptase interaction information come from?
Our interaction data is built on the Natural Medicines database — an evidence-graded reference for vitamins, herbs, and supplements — and is reviewed by licensed HelloPharmacist pharmacists, who may add clinical context.
What is Serrapeptase used for?
People commonly use it for inflammation, swelling, pain after surgery or injury, joint pain, and to thin mucus in the sinuses or lungs. However, strong scientific proof that it works is lacking.
Is Serrapeptase safe?
It is generally tolerated for short-term use in healthy adults, but its long-term safety is not well studied. Talk to your pharmacist or doctor first, especially if you have a bleeding disorder or take other medicines.
Can I take Serrapeptase while pregnant or breastfeeding?
No reliable safety information exists for these situations, so it is best to avoid Serrapeptase during pregnancy and breastfeeding.
How should I take Serrapeptase?
There is no standard dose, so follow the directions on the product label. Many enteric-coated products are taken on an empty stomach, but check your label and ask your pharmacist.

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

Keep exploring

Products that contain Serrapeptase

A rotating sample of real supplements in our database that list Serrapeptase — open any to see its full ingredients and every drug interaction we check.

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