Answer
Slow chewing followed by resting the gum against the cheek allows buccal absorption. Chewing continuously can increase swallowed nicotine and cause hiccups, nausea or indigestion.
Sources for this answer
- Nicorette Icy White 2 mg Gum — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.