Preservative-free is not antioxidant-free.
De Vera
H V
HV
D000767:Anesthesia, Epidural; D000975:Antioxidants / Q000009:adverse effects*; D004340:Drug Contamination; D004348:Drug Labeling; D006801:Humans; D008012:Lidocaine; D010523:Peripheral Nervous System Diseases / Q000139:chemically induced
D000975:Antioxidants; D008012:Lidocaine