 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  stop, or change the dosage of any medicines without your doctor's approval. Tell your doctor or pharmacist if you are using other lidocaine products at the same time as this medication because your risk of serious side effects may increase. Does Lidocaine HCL Viscous Solution interact with other drugs you are taking? Enter your medication into the WebMD interaction checker Check InteractionThe overdose of Lidocaine Viscous Mucous Membrane: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: vision/hearing changes, severe dizziness/drowsiness, fainting, loss of consciousness, shaking, seizures, slow/irregular heartbeat, slow/shallow breathing.  Notes Do not share this medication with others. This medication has been prescribed for your current condition only. Do not use it later for another condition unless your doctor directs you to do so. A different medication may be necessary in that case.  Missed Dose Not applicable. </s>