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Is Polygeline halal?

Polygeline is classified uncertain for halal use with Medium confidence. A modified bovine gelatin used as a stabilizer in some vaccines (e.g., RabAvert rabies vaccine). Bovine-derived processed gelatin; species and slaughter method are rarely disclosed on patient-facing labels.

Biological (stabilizer) · Confidence: Medium

Also known as: modified gelatin, bovine gelatin stabilizer, processed bovine gelatin

Uncertain Ask pharmacist
Find medicines containing Polygeline

Related excipients

Ranked by co-formulation in our medicine catalog, shared concern codes, and compare guides.

Gelatin Uncertain

Capsule material

Shared concern code: gelatinRisk, unknownSpecies

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Bovine Insulin (historical) Uncertain

Active (hormone)

Shared concern code: bovineDerived, slaughterMethodUnknown

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Hydrolyzed Collagen Uncertain

Excipient (protein)

Shared concern code: gelatinRisk, unknownSpecies

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Chondroitin Sulfate Uncertain

Supplement (joint)

Shared concern code: slaughterMethodUnknown

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Chymosin (Rennet) Uncertain

Enzyme

Shared concern code: unknownSpecies

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Fetal Bovine Serum Uncertain

Biological (manufacturing)

Shared concern code: bovineDerived

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What it is

A modified bovine gelatin used as a stabilizer in some vaccines (e.g., RabAvert rabies vaccine).

Source:FDA — RabAvert prescribing informationFDA — Imovax Rabies

Why it's here

Protects viral antigen during storage and freeze-drying.

See:FDA — RabAvert prescribing informationFDA — Imovax Rabies

Why it may matter

Bovine-derived processed gelatin; species and slaughter method are rarely disclosed on patient-facing labels.

Source:FDA — RabAvert prescribing informationFDA — Imovax Rabies

Common sources
  • Bovine collagen (processed)

Questions to ask

  • Is polygeline or bovine gelatin listed in this vaccine?
  • Is an albumin-based alternative (e.g., Imovax) available?

Reason codes

gelatinRiskbovineDerivedunknownSpeciesslaughterMethodUnknown

Evidence & citations2

Audit

Common questions

Is Polygeline halal?
RxHalal currently classifies Polygeline as UNCERTAIN (Medium confidence). Bovine-derived processed gelatin; species and slaughter method are rarely disclosed on patient-facing labels. This is information only — not a fatwa or medical advice.
What is Polygeline used for in medicines?
A modified bovine gelatin used as a stabilizer in some vaccines (e.g., RabAvert rabies vaccine). Protects viral antigen during storage and freeze-drying.
What are common sources of Polygeline?
Common sources include: Bovine collagen (processed). Manufacturers often do not disclose which source is used.
Is polygeline or bovine gelatin listed in this vaccine?
Ask your pharmacist or prescriber. RxHalal lists this because Polygeline is uncertain in our cited database.
Is an albumin-based alternative (e.g., Imovax) available?
Ask your pharmacist or prescriber. RxHalal lists this because Polygeline is uncertain in our cited database.
What are alternatives to Polygeline in medicines?
Possible alternatives mentioned in our database: Imovax Rabies (human albumin stabilizer). Always confirm with a clinician before switching.

Smallest set of questions to ask

AI suggests the fewest questions that would resolve the uncertainty.

Offline: the questions listed above are available without AI.