PREGNANCY: There are no adequate studies of use in pregnant women. Available evidence does not suggest harm to the fetus. Lidocaine crosses the placenta and does enter the fetal blood stream so close monitoring of the heart is recommended.
NURSING MOTHERS: Lidocaine is excreted in breast milk so it should be used cautiously by nursing mothers. The amount absorbed by the infant is not expected to be significant.
SIDE EFFECTS: Side effects vary by dose and site of administration. The most common adverse reactions include low heart rate, low blood pressure, backache, dizziness, lightheadedness, and numbness. Additional side effects include shivering, tingling, sedation, blurry vision, confusion, nervousness, and euphoria. Rare, but serious side effects include cardiac arrest, methemoglobinemia, breakdown of cartilage, seizure, and loss of consciousness.
REFERENCE: FDA Prescribing Information.
Quick GuideHeart Disease: Symptoms, Signs, and Causes
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