From the Research
The recommended dosage for viscous lidocaine is 0.15 ml/kg of a 2% solution for children, as this dosage has been studied in clinical trials and found to be effective for oral pain management 1.
Key Considerations
- Viscous lidocaine is commonly used for oral pain management, including mouth ulcers, oral mucositis, and sore throat.
- The medication works by temporarily blocking nerve signals in the mouth and throat, providing local anesthesia.
- Patients should avoid eating or drinking for 60 minutes after use to prevent choking, as the medication numbs the gag reflex.
- They should also avoid biting their cheek or tongue while numb.
- Overdosage can lead to serious cardiovascular and central nervous system effects, so strict adherence to dosing guidelines is essential.
Important Details
- For adults, a typical dosage is 15 ml of a 2% solution, swished in the mouth for 1-2 minutes and then spit out.
- This should not be used more frequently than every 3 hours, with a maximum of 8 doses per 24-hour period.
- Patients with liver disease, heart conditions, or those taking certain medications may require dosage adjustments, so consultation with a healthcare provider is important before use.
Evidence Summary
- A study published in the Annals of Emergency Medicine in 2014 found that 0.15 ml/kg of 2% viscous lidocaine was effective in increasing oral intake in children with painful infectious mouth conditions 1.
- Another study published in BMC Pediatrics in 2011 also supported the use of 2% viscous lidocaine for oral pain management in children 2.
- However, the most recent and highest quality study should be prioritized, which in this case is the 2014 study published in the Annals of Emergency Medicine 1.