Novocaine, a local anesthetic commonly used in dental procedures, typically causes numbness that lasts between 30 to 60 minutes. When combined with epinephrine (adrenaline), its effects may extend up to about 90 minutes
. However, the total sensation of numbness in the lips, face, or tongue can persist for longer-often 1 to 2 hours, and sometimes up to 3 to 5 hours after the procedure, depending on the amount used and individual factors
. The duration varies based on factors such as the dose administered, the area treated, individual metabolism, and whether epinephrine is used. Some people with a rare enzyme deficiency (pseudocholinesterase deficiency) may experience prolonged numbness because their bodies metabolize Novocaine more slowly
. In summary:
- Typical numbness duration: 30 to 60 minutes
- With epinephrine: up to 90 minutes
- Residual numbness in surrounding areas: 1 to 5 hours
- Individual factors and dosage can extend or shorten this time
If faster recovery from numbness is desired, gentle warm compresses and massage to increase blood flow may help
