Chemical preparations containing enzymes for medical purposes; chemical preparations containing enzymes for pharmaceutical purposes; chemical preparations containing enzymes for veterinary purposes; coenzyme Q10 dietary supplements; digestive enzymes for medical purposes; enzyme dietary supplements; enzyme preparations for medical purposes; enzyme preparations for veterinary purposes; enzyme supplements for medical purposes; enzymes for medical or veterinary use; enzymes for medical purposes; enzymes for veterinary purposes; pepsin [enzymes] for veterinary purposes; preparations of enzymes for medical purposes; pharmaceutical preparations containing enzymes; preparations of enzymes for veterinary purposes; purified enzymes for veterinary use; purified enzymes for medical use; reagents in kit form for conducting enzyme-linked immunosorbent assays [ELISA] for medical purposes; reagents in kit form for conducting enzyme-linked immunosorbent assays [ELISA] for veterinary purposes; recombinant human drug-metabolizing enzyme being biochemical preparations for medical purposes; recombinant human enzyme being biochemical preparations for medical purposes.