What is the maximum dose of lidocaine for local anesthesia without epinephrine in adults?

The maximum dose of lidocaine for local anesthesia without epinephrine in adults is indeed 5 mg/kg. This limit is based on safety guidelines to minimize the risk of systemic toxicity. Lidocaine is a commonly used local anesthetic that can lead to serious side effects if administered in excessive amounts.

At the upper limit of 5 mg/kg, the use of lidocaine is generally considered safe for most adult patients, assuming there are no contraindications or additional factors such as compromised liver function that could affect drug metabolism. Doses above this threshold increase the risk of adverse reactions, including central nervous system and cardiovascular issues. Therefore, adhering to this maximum dose ensures effective anesthesia while prioritizing patient safety.

In clinical practice, the appropriate calculation for the total amount of lidocaine is crucial, and providers must always be aware of the patient's weight to avoid exceeding this dosage limit when administering local anesthesia.