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Ingredients

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Polygeline

Uncertain

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.

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Fetal Bovine Serum

Uncertain

A cell-culture supplement used in manufacturing some biologics; rarely on final labels but may be disclosed.

Bovine origin; not ingested in final drug but matters to some consumers.

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