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Lidocaine Viscous (2% lidocaine oral solution) is used to temporarily relieve pain and discomfort in the mouth and throat. Common indications include oral mucositis from chemotherapy or radiation, aphthous ulcers (canker sores), stomatitis, and irritated or inflamed mucous membranes.

Lidocaine Viscous is typically swished around the mouth or gargled for a short period and then either spit out or swallowed, depending on the area being treated. Your prescribing physician will give you specific instructions on dose, frequency, and whether to spit or swallow, as the swallowing method carries more systemic absorption risk.

Lidocaine Viscous generally begins to numb oral and throat tissue within 2 to 5 minutes of application. The numbing effect typically lasts 15 to 30 minutes, after which sensation gradually returns.

Common side effects include temporary numbness, altered taste, and mild burning at the application site. Swallowing large amounts can lead to systemic absorption and, in rare cases, effects on the heart or central nervous system. Children are at higher risk for toxicity; this page is for adults 18 and older only.

It is generally recommended to wait at least 30 to 60 minutes after using Lidocaine Viscous before eating or drinking. Because the throat may be numb, there is an increased risk of biting the inside of your mouth or aspirating food or liquid while the medication is active.

You may qualify if you have a prior diagnosis of a condition causing significant mouth or throat pain, such as oral mucositis, stomatitis, or recurrent aphthous ulcers, and you have previously been prescribed Lidocaine Viscous by a licensed provider. A physician will review your information to confirm the refill is still appropriate for you.

Doctronic uses an AI-powered evaluation to gather your symptoms and medical history, which is then reviewed by a licensed physician. If treatment is appropriate, the physician creates a personalized treatment plan, which may include a prescription sent to your preferred pharmacy.

Yes. Doctronic connects patients with real, licensed physicians whose decisions are doctor-reviewed and audited for quality. The platform is HIPAA-compliant, protecting your personal health information at every step. Doctronic is available to adults 18 and older in any U.S. state.