Will Adjusting the pH of Lidocaine Reduce the Pain During Injection of Local Anaesthetic?

Will Adjusting the pH of Lidocaine Reduce the Pain During Injection of Local Anaesthetic?

This study will investigate the influence of adjusting the pH of lidocaine on pain during subcutaneous injection. Each participant will receive two injections on the abdomen with different pH. After each injection, the subject will be asked to evaluate the pain on a Visual analog scale (0-100 mm). It is anticipated that the pain decreases with increasing pH. The aim of the study is to find a simple method for pain reduction that can be used in clinical practice.

Inclusion Criteria: fyll inn

• Age 18-65 years

Exclusion Criteria:

• Kidney, heart or liver disease
• Eczema or psoriasis on injection site
• Neuropathy
• Regular use of painkillers
• Hypersensitivity of Lidocaine
• Pregnancy
• Diabetes