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Helps to support immune function in the upper respiratory tract


Support antibody production

Stimulate the immune system

Targets respiratory system pathogens

Provides Immunoglobulin G (IgG)

Promotes production of Immunoglobulin A (IgA)

60 vcaps | NPN: 80108446

Subtivir™ is an innovative combination of ingredients that support antibody production, stimulate the immune system, and attack pathogens with a focus on the respiratory system.

While standardized bovine colostrum provides Immunoglobulin G (IgG), Bacillus subtilis stimulates the production of Immunoglobulin A (IgA). Bacillus subtilis supplementation during the winter period is a safe effective way to stimulate immune responses in elderly subjects by inducing a higher concentration of IgA antibodies. IgA antibodies are very important for lung health and can neutralize viruses. 

Immunoglobulin G (IgG) rich colostrum helps to support immune function within the upper respiratory tract. 

Andrographis paniculata standardized to 30% Andrographolide was found superior to placebo for reducing symptom severity in upper respiratory tract infections. The dominant symptom relief is improvement in cough intensity and frequency as well as a reduction in severity of sore throat symptoms.


Did you know

Bacillus subtilis produces a large number of antimicrobials.

Medicinal Ingredients


Each vegetarian capsule contains:                                 Quantity       
Bacillus subtilis DE111 whole cell2 billion CFU
Andrographis paniculata herb extract250 mg
   Providing 30% Andrographolide75mg
Bovine Colostrum (Bos taurus)250 mg
  Providing 30% Immunoglobulin G (IgG)75mg
Garlic (Allium sativum) bulb 100:1 extract10 mg



Non Medicinal Ingredients

Microcrystalline cellulose, ascorbyl palmitate.
Capsule shell: hypromellose (vegetarian gelatin).

Does not contain

Egg, gluten, soy, wheat, corn, yeast, nuts, artificial sweeteners, preservatives, colors or flavors.

Who can benefit?

Preventative or as a treatment of upper respiratory tract infections.

Do not take higher dosage without first consulting a doctor or naturopath specialist.

Recommended dose

Adults take 1 capsule 1-2 times per day.


Consult a health care practitioner prior to use if: you are taking blood thinners or protease inhibitors, you have fever, vomiting, bloody diarrhea or severe abdominal pain, if you have diabetes, a history of cancer, or suffer from an immune system disorder (e.g. Crohn’s disease, myasthenia gravis, multiple sclerosis, rheumatoid arthritis, systemic lupus erythematous, HIV/ AIDS, etc.) or if you are taking medications to suppress the immune system (immunosuppressive medications). Consult a health care practitioner if symptoms persist or worsen. Stop use if hypersensitivity occurs. Stop use and consult a health care practitioner if symptoms of digestive upset occur, worsen and/or persists beyond 3 days. Do not use if you are pregnant or breastfeeding, or if you have a known allergy to cow’s milk.

Sealed for your protection. Do not use if seal is broken. 

Keep sealed, store in a cool, dry place at 15–25ºC.

Keep out of reach of children.