Pregnancy and lactation
Patients who are pregnant or lactating require and deserve the same good pain control as anyone else, and local anaesthesia should not be withheld for procedures where it is required. Fortunately, the local anaesthetics and vasoconstrictors used in dentistry are safe to administer in the pregnant or lactating patient. Indeed, their use enables treatment that may prevent the prolonged use of systemic analgesics and antibiotics.
Among local anaesthetics, lidocaine and prilocaine have the safest ranking with the U.S. Food and Drug Administration (FDA). Lidocaine may be preferable because it is a low-concentration formulation, thereby making it easier to minimize total dose. For topical preparations, lidocaine also has the safest rating.
For the lactating patient, it may be assumed that all local anaesthetics used in dentistry are safe.
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