Draft for consultation: Quality of natural health products guide: Appendices 4 and 5
On this page
- Appendix 4 – Test and acceptance criteria for materials and products containing live microorganisms (probiotics)
- Appendix 5 – NHP FPS form tables
Appendix 4 – Tests and acceptance criteria for materials and products containing live microorganisms (probiotics)
This appendix provides a list of tests, acceptance criteria and other specific quality attributes required for products containing live microorganisms (probiotics) at both the raw material and finished product stages.
| Specifications | Acceptance criteria for assay and limits of raw material in master cell bank | ||
|---|---|---|---|
Identity of each species (Phenotyping tests)Footnote 15 |
Biochemical testing of characteristics specific to the species that can include but are not limited to the following:
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Identity of each species and strain (Genotyping tests)Footnote 15 |
Species identification:
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Strain characterization: Whole genome in vitro sampling/sequencing through a method that is adequate for the species, to allow independent confirmation of the strain designation (for example, NGS, RAPD-PCR, PFGE, ERIC-PCR, rep-PCR) |
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| Specifications | Acceptance criteria for characterization tests done in master cell bankFootnote 2 | ||
Virulence tests: AST |
Antibiotic/antifungal resistance
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Antibiotic/antifungal resistance transferability For microorganisms with active antibiotic/antifungal resistance gene(s):
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Virulence tests: Ingredient-specific test parameters (Virulence factor production) (for example, factors involved in evasion, compliance, biofilm formation, invasion, and toxin production) |
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Toxigenic activity (for example, endotoxin, exotoxin, hemolysin, other residual toxic component production) |
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| Specifications | Cell culture substrates | ||
Mycoplasma |
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| Acceptance criteria for finished products | |||
| Specifications | Tests | Limits | |
Physical description of the finished product |
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Performance tests |
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Chemical contaminants (finished product or raw material stage) |
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Quantity (Total viable cell count in CFU) |
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Water activity |
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Total aerobic plate countFootnote 5 |
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Total yeast and mould count (fungi)Footnote 9 |
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Enterobacteriaceae andbile tolerant Gram-negative bacteriaFootnote 11 |
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Salmonella spp. |
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Escherichia coli |
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Staphylococcus aureus |
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Pseudomonas aeruginosaFootnote 10 |
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Bacillus cereusFootnote 12 |
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Listeria monocytogenes |
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Cronobacter sakazakii (formerly Enterobacter sakazakii) |
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Clostridia spp. |
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Candida albicansFootnote 13 |
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Endotoxins |
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Antibiotic residuesFootnote 14 |
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Appendix 5 – NHP FPS form tables
Health Canada plans to remove the following tables from the Finished product specifications form user guide and include them only in this appendix.
| Test parameters | Products, ingredients | Acceptance criteria (tolerance limits) | |
|---|---|---|---|
Physical identity (physical description of the finished product) |
For all products |
Conforms to standard |
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Identification of medicinal ingredients |
For all medicinal ingredients |
Conforms to reference material |
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Live microorganisms (probiotics):
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Phenotyping Conforms to the reference materialFootnote 2 Genotyping For nucleic acid-based identification using PCR:
For genome sampling/sequencing through a method that is adequate for the species:
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Quantity |
Most medicinal ingredients |
Pharmacopoeial limits or, in their absence, 80% to 120% of labelled claim |
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Enzymes |
80% to 150% of labelled claim |
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Vitamins, minerals |
Pharmacopoeial limits or, in their absence, 80% to 120% of labelled claim |
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Live microorganisms (probiotics) |
80% of labelled claim at the end of shelf life For products or ingredients that, through their intended use, present a serious health riskFootnote 3:
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Lutein |
95% to 130% of labelled claim |
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Potency (for standardized extracts) |
Most constituents |
Pharmacopoeial limits or 80% to 120% of labelled claim |
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Enzymes (if quantity was declared by weight) |
80% to 150% of labelled claim |
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Vitamins, minerals |
Pharmacopoeial limits or, in their absence, 80% to 120% of labelled claim |
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Lutein |
95% to 130% of labelled claim |
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Zeaxanthin |
90% to 260% of labelled claim |
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Purity – Microbial |
Microbial contaminants |
Oral non-sterile products containing isolates, synthetic duplicates, vitamins, minerals, amino acids and essential fatty acids |
Limits from USP General chapter <1111> Microbiological examination of nonsterile products, USP General chapter <2023> Microbiological attributes of nonsterile nutritional and dietary supplements, BP Appendix XVI D Microbiological quality of non-sterile pharmaceutical preparations and substances for pharmaceutical use, or Ph.Eur. General chapter 5.1.4. Microbiological quality of non-sterile pharmaceutical preparations and substances for pharmaceutical useFootnote 4 |
Oral non-sterile products – plants, plant materials, algae, fungi and their extracts |
Limits from USP General chapter <2023> Microbiological attributes of nonsterile nutritional and dietary supplements, BP Appendix XVI G Microbiological quality of herbal medicinal products for oral use and extracts used in their preparation, or Ph.Eur. General chapter 5.1.8. Microbiological quality of herbal medicinal products for oral use and extracts used in their preparationFootnote 4 |
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Non-oral non-sterile products |
Limits from USP General chapter <1111> Microbiological examination of nonsterile products: Acceptance criteria for pharmaceutical preparations and substances for pharmaceutical use, BP Appendix XVI D Quality of non-sterile pharmaceutical preparations and substances for pharmaceutical use, or Ph.Eur. General chapter 5.1.4. Microbiological quality of non-sterile pharmaceutical preparations and substances for pharmaceutical useFootnote 4 |
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Oral non-sterile products – Non-human animal material |
Limits from USP General chapter <2023> Microbiological attributes of nonsterile nutritional and dietary supplements, BP Appendix XVI D Microbiological quality of non-sterile pharmaceutical preparations and substances for pharmaceutical use, or Ph.Eur. 5.1.4. Microbiological quality of non-sterile pharmaceutical preparations and substances for pharmaceutical useFootnote 4 |
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Non-oral non-sterile products – Non-human animal material |
Limits from USP General chapter <1111> Microbiological examination of nonsterile products: Acceptance criteria for pharmaceutical preparations and substances for pharmaceutical use, BP Appendix XVI D Microbiological quality of non-sterile pharmaceutical preparations and substances for pharmaceutical use, or Ph.Eur. General chapter 5.1.4. Microbiological quality of herbal medicinal products for oral use and extracts used in their preparationFootnote 4 |
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Homeopathic medicines |
Limits from USP General chapter <1111> Microbiological examination of nonsterile products: Acceptance criteria for pharmaceutical preparations and substances for pharmaceutical use, BP Appendix XVI D Microbiological quality of non-sterile pharmaceutical preparations and substances for pharmaceutical use, or Ph.Eur. General chapter 5.1.4. Microbiological quality of non-sterile pharmaceutical preparations and substances for pharmaceutical useFootnote 4 |
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Multi-ingredient products containing plants and plant materials, live microorganisms, minerals or animal-derived ingredients |
Microbiological tests for all markers for all ingredient types The widest acceptance criteria for TAMC and TYMC may be used Ph.Eur. General chapter 5.1.4. Microbiological quality of non-sterile pharmaceutical preparations and substances for pharmaceutical use (for animal materials), USP General chapter <2023> Microbiological attributes of nonsterile nutritional and dietary supplements, and USP General chapter <1111> Microbiological examination of nonsterile products: Acceptance criteria for pharmaceutical preparations and substances for pharmaceutical use |
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Sterile products |
Limits from USP General chapter <71> Sterility tests, BP Appendix XVI A Test for sterility, or Ph.Eur. General chapter 2.6.1. SterilityFootnote 4 |
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Total aerobic plate countFootnote 5 |
Products containing live microorganisms (probiotics) (see exceptions below) |
For products or ingredients that, through their intended use, present a serious health riskFootnote 3:
All other products: ≤ 5000 CFU/g or mLFootnote 11 Footnote 13 |
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Total yeast and mould countFootnote 7 |
Products containing live microorganisms (probiotics) (see exception below) |
For products or ingredients that, through their intended use, present a serious health riskFootnote 3:
All other productsFootnote 11: ≤ 100 CFU/g or mL (USP General chapter <64> Probiotic tests) |
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Salmonella spp. |
Products containing live microorganisms (probiotics) (see exception below) |
AbsentFootnote 11 (USP General chapter <64>Probiotics tests) |
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Escherichia coli |
Products containing live microorganisms (probiotics) |
Absent (10 g or 10 mL) |
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Staphylococcus aureus |
Products containing live microorganisms (probiotics) |
AbsentFootnote 11 (recommended 10 g or 10 mL) |
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Enterobacteriaceae and bile-tolerant gram-negative bacteriaFootnote 8 |
Products containing live microorganisms (probiotics) (see exception below) |
For products or ingredients that, through their intended use, present a serious health riskFootnote 3: absentFootnote 11 Footnote 13 All other products: ≤ 100 CFU/g or mL |
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Exception: Products or ingredients containing live microorganisms (probiotics) that, through their intended use, present a serious health riskFootnote 3 |
Absent (USP General chapter <64> Probiotics tests) |
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Pseudomonas aeruginosa |
Vaginal and liquid preparation products containing live microorganisms (probiotics) |
Absent (Ph.Eur. 11.0 LBPFootnote 10, USP General chapter <64>Probiotics tests) |
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Bacillus cereus |
Products or ingredients that, through their intended use, present a serious health riskFootnote 3 containing Bacillus spp. spores |
For products or ingredients that, through their intended use, present a serious health riskFootnote 3: absent (Ph.Eur. 11.0 LBPFootnote 10) All other products: as requiredFootnote 11 |
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Listeria monocytogenes |
Products containing live microorganisms (probiotics) and indicated for use during pregnancy, and in infants, or products or ingredients that, through their intended use, present a serious health riskFootnote 3 |
For products used in pregnancy and infants, and other products or ingredients that, through their intended use, present a serious health riskFootnote 3 Footnote 11: absent (USP General chapter <64>Probiotics tests) All other products: as requiredFootnote 11 |
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Cronobacter sakazakii (formerly Enterobacter sakazakii) |
Products containing live microorganisms (probiotics) and indicated for infant use or products or ingredients that, through their intended use, present a serious health riskFootnote 3 |
For products used in infants and other products or ingredients that, through their intended use, present a serious health riskFootnote 3 Footnote 11: absent (USP General chapter <64>Probiotics tests) All other products: as requiredFootnote 11 (USP General chapter <64>Probiotics tests) |
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Clostridia spp. |
Products containing live microorganisms (probiotics) and indicated for infant use or products or ingredients that, through their intended use, present a serious health riskFootnote 3 |
For products used in infants and other products or ingredients that, through their intended use, present a serious health riskFootnote 3: absent (USP General chapter <64>Probiotics tests, USP General chapter <62>Microbiological examination of nonsterile products: Tests for specified microorganisms) All other products: as required (USP General chapter <64> Probiotics tests) |
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Candida albicans |
Vaginal products containing live microorganisms (probiotics) |
Absent (Ph.Eur. 11.0 LBPFootnote 10, USP General chapter <62>Microbiological examination of nonsterile products: Tests for specified microorganisms) |
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Purity – Chemical |
Total arsenic |
All products (except topical) |
< 0.214 µg/kg b.w./day |
Topical |
≤ 3.0 ppm for a daily dose of 10 g or less, PDE ≤ 30 µg/day |
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Organic arsenic |
Only if total arsenic limit is exceeded |
< 20.0 µg/kg b.w./day |
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Inorganic arsenic |
Only if total arsenic limit is exceeded |
< 0.214 µg/kg b.w./day |
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Cadmium |
All products (except topical) |
< 0.07 µg/kg b.w./day |
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Topical |
≤ 2.0 ppm for a daily dose of 10 g or less, PDE ≤ 20 µg/day |
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Lead |
All products (except topical) |
< 5.0 µg/day |
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Topical |
≤ 5.0 ppm for a daily dose of 10 g or less, PDE ≤ 50 µg/day |
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Total mercury |
All products (except topical) |
< 0.214 µg/kg b.w./day |
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Topical |
< 3.0 ppm for a daily dose of 10 g or less, PDE ≤ 30 µg/day |
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MethylmercuryFootnote 9 |
Only if total mercury limit exceeds limit for methylmercury |
< 0.029 µg/kg b.w./day |
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Chromium VI (when applicable) |
All products (except topical) |
< 0.29 µg/ kg b.w./day |
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Topical |
≤ 1.0 ppm |
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Antimony (when applicable) |
Topical |
≤ 90 ppm for a daily dose of 10 g or less, PDE ≤ 900 µg/day |
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Solvent residues |
Extracts, isolates, synthetic duplicates |
ICH guideline Q3C or pharmacopoeial limits |
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Stability |
For all products |
Meets the requirements for stability as described in this guide and in the NHP GMP guide Enumeration testing required for probiotics and activity testing required for enzymes |
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| Ingredients | Test parameters | Acceptance criteria (tolerance limits) |
|---|---|---|
Products containing plants, plant material, fungi, algae, cyanobacteria, non-human animal material or their extracts |
Pesticides |
Limits from USP General chapter <561> Articles of botanical origin, USP General chapter <565> Botanical extracts, BP Appendix XI L Pesticide residues, or Ph.Eur. General chapter 2.8.13 Pesticide residuesFootnote 1; or MRLs established by the PRD |
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Aflatoxins |
Aflatoxins B1+B2+G1+G2 < 20 µg/kg (ppb) of substance Aflatoxin B1 <5 µg/kg (ppb) of substance |
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Ochratoxin A |
< 20 µg/kg (ppb) in liquorice root < 80 µg/kg (ppb) in liquorice dry extract used for flavoring purposes |
Plants, plant materials, algae and fungi, and their extracts when suspected |
Fumonisins (FB1 + FB2 + FB3) |
< 2 µg/kg b.w. |
Cyanobacterial materials (blue-green algae, including Aphanizomenon flos-aquae) |
Cyanobacterial toxins |
≤ 0.02 µg MC-LR/kg b.w./day |
Cannabis sativa (hemp products) |
Total THC |
≤ 10 ppm or a value lower than 10 ppm |
Total CBD |
Absent |
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Animal materials (for example, ovaries, hypothalamus, prostate gland, mammary gland, pituitary gland, adrenal gland and orchic gland) |
Hormones (sex hormones that are regulated as prescription drugs under the Food and Drug Regulations, or as controlled substances as set out in Schedule IV of the Controlled Drugs and Substances Act) |
Absent |
Royal jelly and honey |
Antibiotic residues (chloramphenicol, nitrofuran and their residues) |
Absent |
Ingredients sourced from an animal (when suspected) |
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Absent |
Horsetail (Equisetum arvense) |
Thiaminase activity (horsetail) |
Free of thiaminase activity |
Products containing extracts, isolates, synthetic duplicates |
Related impurities Product and/or process-related impurities, if applicable (for example, co-extracted substances, inactive isomers, degradation products, intermediate products, reagents, catalysts) |
Pharmacopoeial limits when available or conforms to acceptable qualification of individual impuritiesFootnote 4 Footnote 5 Footnote 6 |
Marine oils (for example, cod liver oil, fish oil, krill oil, seal oil, squid oil) |
Sum of PCDFs, PCDDs and dioxin-like PCBs |
≤ 10.0 pg TEQ TEF/g of oil |
Sum of PCDFs and PCDDs |
≤ 2.0 pg TEQ TEF/g of oil |
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PV |
NMT 5.0 mEq active oxygen/kg of oil |
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Acid value |
NMT 3.0 KOH/g NMT 45.0 KOH/g (Krill oil and calcaneus oil) |
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AV |
NMT 20.0 mEq/kg |
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TOTOX value |
NMT 26.0 |
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Oils containing non-marine unsaturated fatty acids |
Oxidative stability: Acid value, PV and/or AV as per pharmacopoeial monograph |
Pharmacopoeial limits |
Products that may have been in contact with radioactivity |
Radioactivity (when suspected) |
1 mSv/year |
Glycerin (not including products where glycerin is only included as a capsule shell ingredient) |
Diethylene glycol and related compounds |
0.1% of any individual impurity, not more than 1.0% of total impurities |
Label claims product is free of an allergen |
Gluten |
≤ 20 ppm |
Sulphites |
≤ 10 ppm |
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Other allergen |
Absent |
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Products containing creatine monohydrate |
Process-related impurities in the USP Creatine monograph |
Pharmacopoeial limits |
Nosodes (for homeopathic medicines containing nosodes) |
Sterility technique in compliance with the sterility requirements in the HPUS or HAB |
Complies with sterility requirements in the HPUS or HAB |
Live microorganisms (probiotics)Footnote 3 |
Antibiotic residues |
Absent |
Live microorganisms (probiotics) |
Endotoxins |
For products that, through their intended use, present a serious health riskFootnote 7: Complies with USP General chapter <85> Bacterial endotoxins test or ICH guideline Q4B Annex 14: Bacterial endotoxins test general chapter |
Products containing extracts, isolates, synthetic duplicates, vitamins, minerals, essential fatty acids, amino acids |
Incidental impurities, related substances, process related impurities |
Pharmacopoeial limits or absent |
Ingredient- or product-specific |
Adulterants (specify adulterant) |
Pharmacopoeial limits if availableFootnote 2 |
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| Test parameters | Products | Acceptance criteria (tolerance limits) |
Comments |
|---|---|---|---|
Weight variation (WV), or Content uniformity (CU) |
Discrete single-unit dosage forms, including:
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Conforms to pharmacopoeial limits Individual unit target weight of NMT ± 10% of average target weight (or NMT ± 7.5% for chewable gels) as per USP <2091> Weight variation of dietary supplements, or conforms to pharmacopoeial limits |
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Disintegration |
Uncoated tablets |
NMT 45 minutes |
Immediate release |
Plain coated tablets |
NMT 60 minutes |
Immediate release |
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Sublingual and buccal products such as tablets and films |
Disintegrates in NMT 30 seconds |
Claiming immediate release |
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Chewable gels (commonly called gummies) |
NMT 15 minutes |
Immediate release |
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Hard or soft shell capsules |
NMT 30 minutes or conforms to pharmacopoeial limits |
Immediate release |
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Sustained release – Buccal, sublingual or oromucosal products (such as cough lozenges) |
Conforms to pharmacopoeial limits when available or in accordance with the intended release profile |
Conforms to pharmacopoeial limits when available, or is in accordance with the intended release profile |
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Delayed release (enteric-coated dosage forms) |
NLT 60 minutes in gastric fluid NMT 60 minutes in simulated intestinal fluid |
Two-stage testing (using different media in succession or in parallel, as appropriate) |
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Dissolution |
Extended release |
Meet individual product specifications for dissolution profile or conforms to pharmacopoeial limits |
Multi-point sampling |
Vitamin-mineral combination solid oral dosage forms (containing folic acid, vitamin A or water-soluble vitamins and minerals) |
More than 75% of the labelled content of vitamin A, folic acid, and the index vitamin or the index element from the units tested is dissolved in 1 hour |
USP General Chapter <2040> Disintegration and dissolution of dietary supplements |
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Immediate release – Sublingual and buccal (such as tablets and films) |
Conforms to pharmacopoeial limits when available |
Dissolution test as applicable |
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Sustained release – Buccal, sublingual or oromucosal products (such as lozenges) |
Conforms to pharmacopoeial limits when available When no limits are available, pharmacopoeial limits should be determined in accordance with the intended rate of release |
Dissolution test as applicable |
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Oromucosal products in pouches and chewing gums |
Conforms to pharmacopoeial limits when available |
Conforms to pharmacopoeial limits, or is in accordance with the intended release profile |
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Chewable gels (commonly called gummies) |
Conforms to pharmacopoeial limits when available |
Dissolution test as applicable |
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Dosage forms containing plants and plant materials and their extracts |
More than 75% of the labelled content of the index or marker(s) or the extract (index or analytical) compound dissolved in 1 hour |
When applicable |
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Rupture test |
Soft shell capsules containing semisolid or liquid |
NMT 15 minutes or conforms to pharmacopoeial limits |
Immediate release |
Antimicrobial content |
Products containing preservative antimicrobials |
Meets the content needed in accordance with the antimicrobial effectiveness test results |
For example, potassium sorbate, sodium benzoate |
Water activityFootnote 1 |
Chewable gels (commonly called gummies) |
NMT 0.75 or conforms to pharmacopoeial limits |
Test for water activity as per the AOAC's Official Methods of Analysis, Official Method #978.18, or pharmacopoeial method |
Live microorganisms (probiotics) that, through their intended use, present a serious health riskFootnote 2 |
Conforms to pharmacopoeial limits |
N/A |
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Dosage form-specific tests |
Other dosage forms (see table 4 for common dosage forms) |
Conforms to pharmacopoeial or internationally recognized limits when available |
Refer to table 4 |
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These tables capture general limits for use in the NNHPD's NHP FPS form. They do not always capture the frequency of testing, the exceptions that may be granted with a rationale, or whether the test is intended to occur at the raw material or finished product stage. Refer to the relevant sections in the body of this guide for more detailed guidance.
