Serrapeptase
Serrapeptase is an enzyme that breaks down inflammatory proteins in your body. It's widely used in India for sinus issues, swelling, and post-surgical recovery.
Serrapeptase (serratiopeptidase) is a proteolytic enzyme originally isolated from silkworms. It breaks down non-living protein tissue — like fibrin, mucus, and inflammatory debris — without harming healthy tissue. It's widely prescribed in India and Japan for inflammation and mucus.
Good for you if: You have chronic sinus congestion, post-surgical swelling, inflammatory pain, or excessive mucus production.
Dive deeper into the researchCommon side effects
- Mild nausea if not taken on an empty stomach
- Possible skin reactions (rare)
- Avoid combining with blood thinners
What does serrapeptase do?
Serrapeptase is a proteolytic (protein-digesting) enzyme. In your body, it targets dead tissue, fibrin, mucus, and inflammatory byproducts — breaking them down so your body can clear them more easily. It doesn't affect living tissue.
This makes it useful for reducing swelling after injuries or surgery, thinning thick mucus in sinus and respiratory conditions, and supporting recovery from inflammatory conditions.
What can you expect?
- Reduced swelling — especially post-surgical or post-injury oedema
- Thinner mucus — easier breathing with sinus congestion
- Less inflammatory pain — by clearing inflammatory mediators
- Faster recovery — from dental procedures, surgery, or sports injuries
How to take it
60,000 SPU once or twice daily on an empty stomach — at least 30 minutes before food or 2 hours after. Use enteric-coated capsules to protect the enzyme from stomach acid.
For post-surgical recovery, higher doses (120,000 SPU/day) can be used short-term under medical guidance.
Why empty stomach? If taken with food, serrapeptase will digest food proteins instead of inflammatory proteins. It must be absorbed intact into the bloodstream to work systemically.
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Get early accessFrequently Asked Questions
Is serrapeptase the same as nattokinase?
No. Both are proteolytic enzymes, but they have different targets. Nattokinase primarily breaks down fibrin (blood clots) and has anticoagulant properties. Serrapeptase is broader — it breaks down dead tissue, mucus, and inflammatory debris. They're sometimes taken together for synergistic anti-inflammatory and circulatory benefits.
Why does it need to be taken on an empty stomach?
Serrapeptase needs to be absorbed intact into your bloodstream to work on inflammation throughout your body. If you take it with food, it will simply digest the food proteins in your stomach (acting as a digestive enzyme) and won't reach systemic circulation.
Can serrapeptase help with sinus problems?
Yes. Multiple studies show serrapeptase reduces mucus viscosity and improves sinus drainage. It's widely used in ENT practice in India and Japan for chronic sinusitis, post-nasal drip, and excessive mucus production. Effects are usually noticeable within 1–2 weeks.
Is it safe to take long-term?
Studies up to 4 weeks at standard doses show good safety. Long-term safety data beyond a few months is limited. Many practitioners recommend using it in 4–8 week cycles rather than continuously, especially at higher doses. No serious adverse effects have been reported in clinical trials.
How serrapeptase works
Serrapeptase is a metalloprotease (requires zinc for activity) produced by Serratia marcescens bacteria in silkworm intestines. When taken orally in enteric-coated form, it survives stomach acid, gets absorbed in the small intestine, and enters systemic circulation. It selectively hydrolyses non-living proteins — fibrin, bradykinin, and other inflammatory mediators — while leaving living tissue intact. It also modulates adhesion molecules on immune cells and reduces neutrophil migration to inflamed areas.
What the studies show
- Post-surgical swelling: Reduced facial swelling after dental surgery by 50% vs placebo in a double-blind RCT
- Sinusitis: Improved mucus viscosity and symptom scores in chronic sinusitis patients (multiple controlled trials)
- Breast engorgement: Reduced pain and swelling in breastfeeding women (double-blind RCT)
- Carpal tunnel: Improved clinical symptoms in a 6-week trial, though evidence is limited
Side effects & safety
- GI discomfort — Nausea or stomach upset, usually from non-enteric-coated forms or taking with food.
- Skin reactions — Rare reports of dermatitis. Discontinue if any rash appears.
- Bleeding risk — Mild anticoagulant effect. Don't combine with warfarin, aspirin, or other blood thinners without medical supervision.
- Pneumonitis — Extremely rare adverse event reported in a few case reports in Japan. Usually resolved upon discontinuation.
Which labs to check
- hsCRP — general inflammation marker; should decrease with effective anti-inflammatory therapy
- ESR — erythrocyte sedimentation rate; another inflammation marker
- CBC — monitor for any changes in white blood cell counts
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