Lidocaine Viscous (Lidocaine Oral Topical Solution)

Lidocaine viscous is a thickened topical solution of lidocaine (an amide local anesthetic) designed for use on mucous membranes in the mouth and throat. It is usually a 2% solution (about 20 mg of lidocaine per mL), often flavored and suspended in a viscous base so it coats the oral tissues. Lidocaine works by stabilizing nerve membranes and blocking sodium channels, thereby preventing pain signals from being transmitted. In other words, it numbs the area it touches. It has little systemic effect when used as directed, because most is not absorbed into the bloodstream.

Uses and Indications

Lidocaine viscous is used to produce topical anesthesia (numbing) of irritated or inflamed mucous membranes in the mouth and throat. Common uses include:

• Relieving oral pain: It soothes pain from mouth sores, ulcers, or gum/cheek irritations. You swish or apply it to the painful spot to alleviate "burning" or aching sensations.
• Dental procedures: Dentists often apply it to numb the gums or throat before treatments (for example, reducing pain from injections or during impressions. It can also reduce the gag reflex during procedures (like taking dental X-rays or impressions).
• Throat numbness: Doctors sometimes use it to numb the throat for procedures such as endoscopies or to ease severe sore throat pain. The patient gargles or holds a dose in the throat, which numbs the area before swishing out or swallowing the small amount.
• Other off-label uses: In some cases, lidocaine viscous is prescribed for other mucosal pain (e.g. after oral surgery or with braces irritation), always under a physician’s guidance.

Administration & Helpful Tips

Follow the label and your doctor’s directions carefully. Use lidocaine viscous exactly as prescribed. It is typically used “as needed,” not on a strict schedule. A common regimen is no more frequently than every 3 hours (and no more than 8 hours’ total use in 24 hours). Do not exceed the recommended dose.

Practical tips for use:

• Shake well before each use to mix the solution evenly.
• Measure accurately. For children especially, use a proper measuring device or dropper (do not use household spoons) to get the correct dose. If a bottle has a dropper or syringe, use it as directed.
• Apply gently to the target area. Use clean fingertips or a cotton applicator/swab and spread a thin layer on the sore spot or throat. For example, for a mouth ulcer, take a measured amount, place it in your mouth, swish it around over the sore for about 1 minute, then spit it out For throat pain, you can take a sip, tilt your head back, gargle for a bit, and then swallow (some prescribed use involves swallowing the small amount after gargling). Always follow your doctor or pharmacist’s instructions on whether to spit or swallow.
• Use the minimum amount needed to relieve pain. More is not better. Applying a larger volume does not extend the numbness proportionally – it just increases the risk that more lidocaine will be absorbed into your bloodstream.
• Avoid swallowing large amounts. Keep the medicine in your mouth only long enough to numb the area, then spit it out (unless instructed to swallow a small, specified amount for throat use). Accidental swallowing can increase absorption and risk toxicity.
• Do not use on non-indicated areas. Lidocaine viscous is for oral or throat use only. Do not apply it in the ear, eye, or on skin surfaces other than the inside of the mouth. Avoid contact with eyes altogether. If it contacts the eyes, rinse thoroughly with water.
• Avoid eating or drinking until the numbness wears off. Because the medication numbs the oral tissues, do not eat, chew gum, or drink hot beverages for at least 1 hour after use. You might inadvertently bite your lip, tongue, or cheek if you chew food while numb, and hot liquids can scald painless tissues.
• Frequency caution. Do not use it more often than prescribed. Many guidelines recommend waiting at least 3 hours between doses and no more than 8 hours of use per day. Overuse or too-frequent dosing can lead to overdose.

Precautions and Important Health Information

• Children: Never use lidocaine viscous for teething pain in infants or very young children. Fatal outcomes (seizures, brain injury, or death) have occurred in babies and toddlers who accidentally swallowed lidocaine from their gums. The product label strongly warns “not to be used for teething pain” in those under 3 years old. Even for older children, use extreme caution: only use it in a young child if a doctor prescribes it (for example, before an endoscopy) and no safer alternative is available. When giving to children, measure the dose carefully and apply it with a cotton swab or applicator to limit swallowing. Always keep the bottle out of reach of children.
• Allergies: Do not use lidocaine viscous if you have had an allergic reaction to lidocaine or other “amide” anesthetics (like bupivacaine, mepivacaine, etc.). Signs of allergy include hives, itching, swelling of the face/throat, or difficulty breathing. If any allergy symptoms occur, stop use immediately and seek medical care.
• Precautions for certain conditions: Tell your doctor or pharmacist if you have liver disease, a serious heart condition (for example, certain conduction disorders like “AV block”), or methemoglobinemia (a blood disorder), or if you are taking other heart or central nervous system (CNS) medications. Liver dysfunction can slow lidocaine breakdown, leading to buildup. Heart problems or certain blood disorders (like G6PD deficiency) may increase risk of complications. Also mention any current mouth or gum injuries – applying lidocaine to broken or irritated tissue can lead to faster absorption and higher blood levels. Avoid applying heat (e.g. hot compresses or chewing hot foods) to a site after using lidocaine viscous – heat increases absorption.
• Pregnancy and breastfeeding: Lidocaine does cross the placenta and into breast milk. While occasional topical use is not known to be harmful, always ask your doctor first if you are pregnant or nursing. Your doctor will weigh the benefits (pain relief) against any potential risks.
• Interactions: At usual topical doses, lidocaine viscous has few drug interactions. However, because lidocaine is related to certain heart medicines, tell your healthcare providers about all medications, supplements, or herbs you use. Ingestion of large amounts (beyond prescribed use) can interact with heart rhythm drugs or other numbing agents to cause complications.

Side Effects and Overdose Warning

Common side effects: Most people feel a strange or unpleasant taste in the mouth after using lidocaine viscous. You may also feel temporary numbness or tingling beyond the intended area (for example, slightly numbed tongue or cheek if the solution drips). These effects are generally mild and pass as the medication wears off. Rinsing the mouth out with water after the numbness subsides can clear any lingering taste.

Serious side effects (seek medical help): Though rare when used properly, lidocaine can cause serious reactions if it enters the bloodstream in large amounts. Symptoms include allergic reactions (hives, swelling of lips/tongue, breathing difficulty). Signs of systemic (excess) lidocaine include CNS effects (drowsiness, confusion, dizziness, tremors, vision changes, seizures) and cardiovascular effects (slow or irregular heartbeat, low blood pressure, fainting). If you or anyone accidentally swallows more than intended and you notice symptoms like ringing in the ears, slurred speech, severe drowsiness, or difficulty breathing, seek emergency care immediately. Overdose can be life-threatening.

Overdose warning: Even though lidocaine applied to gums usually causes numbing only, excessive use can poison the nervous and heart systems. Symptoms of overdose include uneven heartbeat, convulsions (seizures), slowed breathing, coma, or respiratory failure. If an accidental overdose is suspected (especially ingestion by a child), call emergency services or Poison Control (1-800-222-1222 in the U.S.) right away. Again – use the prescribed dose and avoid swallowing the solution to prevent this risk.

Important Usage Tips

• Dosage Device: Always use the dropper or syringe provided (or ask your pharmacist for one) to measure lidocaine viscous. This helps avoid dosing errors, especially in children.
• No Double Dosing: Since it’s taken as needed, you don’t “make up” missed doses. If you forget, wait until the next scheduled time (or whenever pain returns) and do not double-dose.
• Separate from Eating: After use, wait at least an hour before eating or drinking, and avoid chewing gum. This prevents choking or biting injuries.
• Storage: Keep the bottle tightly closed and out of reach of children. Store at room temperature, away from heat and moisture. Do not flush unused medication down the toilet; dispose of it safely (ask a pharmacist about take-back programs).
• No Sharing: Do not share your lidocaine viscous with others, even if their symptoms are similar.

Lidocaine viscous is a powerful local anesthetic that can provide quick relief from painful mouth or throat conditions when used correctly. However, its potency means you must use it exactly as directed. Always read the drug insert and talk with your doctor or pharmacist if anything is unclear. This information is a general overview; always follow your healthcare provider’s instructions and report any concerning symptoms. If in doubt, contact a medical professional before using lidocaine viscous.

Clinical Uses & Health Information

Lidocaine Viscous 2% Oral Solution is widely recommended for:

• Oral mucositis pain relief (common in chemotherapy, radiation therapy, stem cell therapy, cancer care)
• Numbing before dental procedures or after oral surgery (tooth extractions, gum procedures)
• Sore mouth or throat relief (canker sores, oral ulcers, herpes simplex sores, burning mouth syndrome)
• Denture or orthodontic irritation
• Sore throat, tonsillitis, pharyngitis or post-tonsillectomy care
• Prevention of gag reflex in dental or endoscopic procedures
• *Children and adults with difficult oral pain—always consult a healthcare provider for pediatric use

Features & Health Benefits:

• High-Potency Lidocaine 2% Oral Solution: Delivers rapid numbing to relieve pain in the mouth, gums, tongue, and throat
• Viscous Formula for Maximum Adherence: Stays in place for longer-lasting effect and superior comfort
• Doctor-Recommended for Oral Mucositis, Mouth Ulcers, and Dental Procedures: Ideal for use after dental surgery, tooth extractions, irritation from braces or dentures, and cancer treatment side effects
• Instant Pain & Sore Relief: Fast-acting for relief from canker sores, sore throat, oral lesions, cold sores, and mouth injuries
• Safe for Medical and At-Home Use: Perfect for hospitals, dental offices, oncology practices, and home care

Instructions on How to Use

1. Measure prescribed dose using the provided dosing cap or oral syringe.
2. Rinse or apply:
   • For mouth pain: Swish in the mouth for 30 seconds, then spit out or swallow as directed.
   • For mouth sores/lesions: Apply directly to the affected area with a cotton swab or fingertip.
   • For sore throat: Gargle and then spit out, or swallow only as directed.
3. Do not eat or drink for at least 1 hour after use to prevent choking due to numbness.
4. Wash hands after application.
5. Use exact dose and frequency prescribed by your healthcare provider.
6. Keep out of reach of children; accidental swallowing may cause serious side effects.

Dosage & Administration

• Adults: 15 mL (one tablespoon) up to 4 times a day; do not exceed maximum dose.
• Children: Use only as prescribed (typically lower dose based on body weight).
• Frequency: Every 3-4 hours, as necessary for pain, but not to exceed prescribed dosing limits.

Important: Overuse or swallowing excessive amounts may cause serious adverse effects.

Drug Interactions

• Other local anesthetics: Increased risk of toxicity—avoid combined use.
• Antiarrhythmics (e.g., mexiletine, tocainide): Increased risk of serious side effects.
• Beta-blockers, cimetidine, CYP3A4 inhibitors: May raise blood levels and increase toxicity.
• Heart, liver, or kidney medications: Use caution; discuss with your doctor or pharmacist.

Always discuss all medications and supplements with your healthcare provider before use.

Side Effects & Warnings

Common Side Effects

• Mild burning, stinging, or irritation upon application
• Temporary numbness or tingling of the mouth/throat
• Loss of taste

Serious Adverse Reactions

• Allergic reactions: Rash, itching, swelling, dizziness, trouble breathing (seek emergency help immediately)
• Serious toxicity symptoms: Drowsiness, confusion, seizures, blurred vision, irregular heartbeat, tremors
• Numbness of the throat: May increase choking risk while eating or drinking
• Methemoglobinemia (rare): Pale/blue skin, breathing problems—seek emergency care

Warnings

• For oral use only; do not inject or apply to large skin areas.
• Do not use for teething pain in infants or in children under 3 years without medical advice.
• Pregnant or breastfeeding: Consult your healthcare provider.
• Do not eat/chew until numbness wears off—may increase risk of choking or biting the tongue/cheek.
• Overuse can lead to life-threatening side effects—do not exceed dosage.

• Lidocaine Viscous 2% Oral Solution 20 mg lidocaine hydrochloride per mL in a viscous, mucosa-adherent base
• Manufactured by Hikma Pharmaceuticals (formerly Roxane Laboratories); available wholesale through Mountainside Medical
• Prescription-only (Rx) requires a valid medical license to purchase; not available over the counter
• Indicated for topical anaesthesia of oral and pharyngeal mucous membranes in clinical and procedural settings
• Used across dental, ENT, gastroenterology, EMS, oral surgery, and oncology-support clinical environments
• Wholesale pricing available with volume discounts; free US shipping on orders over $100
• New accounts receive 5% off their first order

• Dental procedures: Pre-injection gingival anaesthesia, gag reflex suppression during impressions or radiographs, post-extraction mucosal pain management
• Endoscopy and ENT: Pharyngeal anaesthesia before upper endoscopy; applied as a gargle-and-hold technique to numb the oropharynx before instrumentation
• Oral mucositis: Swish-and-spit pain relief for chemotherapy- or radiation-induced mouth sores; typically applied for 60 seconds before expectoration
• Sore throat (severe/procedural): Used in clinical settings for a lidocaine gargle for sore throat pain where standard analgesics are insufficient  off-label, under physician direction
• EMS and emergency settings: Oropharyngeal pain management when IV access is not available or a fast-acting topical option is operationally indicated
• Eligible buyer types: Medical clinics, dental and oral surgery practices, ENT and gastroenterology departments, EMS providers, medspas, hospitals, and institutional procurement teams

• Paediatric contraindication critical: Do not use for infant or toddler teething. Fatal outcomes, including seizures, brain injury, and cardiovascular toxicity, have been documented in children under 3 years. FDA warning applies. The product label explicitly prohibits this indication.
• Overdose risk: Excessive application, use on ulcerated mucosa, or ingestion of large volumes can cause systemic toxicity. Symptoms include CNS effects (seizures, drowsiness, confusion) and cardiovascular effects (arrhythmia, hypotension). If overdose is suspected, contact Poison Control immediately: 1-800-222-1222
• Contraindications: Known hypersensitivity to lidocaine or any amide-class local anaesthetic (e.g. bupivacaine, mepivacaine). Do not use in patients with known methemoglobinemia or severe hepatic impairment without clinical review.
• Drug interactions: Inform prescribing clinician of all concurrent medications, particularly antiarrhythmics and other CNS-active agents. At prescribed topical doses, systemic interactions are unlikely, but cumulative or excessive dosing changes that profile.
• Pregnancy and breastfeeding: Lidocaine crosses the placenta and is present in breast milk. Use only if clinically necessary and under physician supervision.
• Post-application precaution: Patients should avoid eating, drinking hot liquids, or chewing gum for at least one hour after application. Oral numbness impairs the ability to detect temperature and pressure scalding, and mucosal bite injuries are documented complications of eating while numb.
• Avoid contact with eyes: Not for ophthalmic, otic, or dermal use. If eye contact occurs, rinse thoroughly with water immediately.

• License requirement: Lidocaine viscous is an Rx-only product. A valid US medical license is required at the time of purchase. This is a federal regulatory requirement. If you are searching whether you can get viscous lidocaine over the counter, the answer is no; a prescription or medical license is required.
• Eligible buyers: Licensed clinics, hospitals, dental practices, EMS providers, medspas, oral surgery centres, veterinary practices, and institutional procurement teams operating in the United States
• Wholesale pricing: Volume discount tiers are available for bulk orders. Contact the wholesale sales team to discuss pricing for your facility's order volume. Lidocaine viscous price varies by pack size and quantity.
• Shipping: Free US shipping on all orders over $100. US-only fulfilment. Fast delivery supported by Mountainside Medical's wholesale distribution infrastructure.
• First-order discount: New accounts receive 5% off their first purchase, applicable to this product.
• Contact for bulk orders: Phone: +1 (888) 687-4334 | Email: sales@mountainside-medical.com

• What is lidocaine viscous 2% oral solution used for?

  Lidocaine viscous 2% oral solution is indicated for topical anaesthesia of irritated or inflamed mucous membranes in the mouth and throat. Clinical applications include pre-procedure gingival numbing in dental settings, pharyngeal anaesthesia before endoscopy, relief of chemotherapy-induced oral mucositis, and management of oropharyngeal pain where standard analgesics are insufficient. It is an Rx-only product for use by or under the direction of a licensed healthcare professional.

• Can you buy oral liquid lidocaine over the counter?

  No. Lidocaine viscous 2% oral solution is a prescription-only (Rx) product in the United States. It is not available over the counter at any concentration equivalent to the clinical formulation. If you are a licensed healthcare professional, you can purchase it wholesale through authorised distributors such as Mountainside Medical. A valid medical license is required at point of purchase.

• How long does lidocaine viscous 2% oral solution last?

  The duration of mucosal anaesthesia following lidocaine viscous application is typically 15 to 45 minutes, though this varies based on the condition of the mucosal tissue, the volume applied, and the application method. Ulcerated or inflamed tissue absorbs lidocaine more rapidly, which can shorten duration while increasing systemic exposure. Dosing should not be increased in an attempt to extend duration, this only increases absorption risk.

• How do you use lidocaine viscous 2% oral solution correctly?

  Shake the bottle before use. Measure the prescribed dose accurately using the dropper or measuring device provided, do not estimate with household spoons. For mouth sores, place the measured amount in the mouth, swish over the affected area for approximately 60 seconds, then spit out. For throat procedures, gargle and spit or swallow a small specified amount as directed by the prescribing clinician. Do not eat, drink hot liquids, or chew gum for at least one hour after application. Standard adult maximum is 15 mL per dose, no more than every three hours, with no more than eight doses in any 24-hour period.

• What is the difference between lidocaine viscous and lidocaine oral gel or lidocaine spray?

  Lidocaine viscous is a thickened solution designed for broad mucosal coverage, the viscous base allows it to coat and adhere to oral and pharyngeal tissue, making it suited for widespread application such as a lidocaine mouthwash or rinse-style delivery. Lidocaine oral gel is a higher-viscosity format better suited for discrete site-specific application (e.g. a single ulcer or injection site). Lidocaine spray provides rapid onset with lower tissue adhesion, it disperses quickly and does not dwell. Each format has its clinical use case; they are not interchangeable substitutes for each other.

• Is lidocaine viscous safe for children?

  Lidocaine viscous 2% oral solution is explicitly contraindicated for use in infants and toddlers for teething pain. The FDA has issued a safety warning following documented fatal outcomes, including seizures, severe brain injury, and death, in children under three years old who received lidocaine viscous applied to their gums. Even in older children, use should only occur when prescribed by a physician for a specific clinical indication where no safer alternative exists, with careful dose measurement and supervised application. This product must be kept out of reach of children at all times.

• ¿Para qué sirve el lidocaine viscous (lidocaine hydrochloride oral topical solution)?

  El lidocaine viscous 2% es una solución tópica anestésica de uso oral indicada para adormecer las membranas mucosas de la boca y la garganta. Se utiliza en procedimientos dentales, antes de endoscopias, para aliviar el dolor de úlceras bucales (mucositis), y para el manejo del dolor de garganta severo en entornos clínicos. Es un medicamento de venta bajo receta médica (Rx) y requiere licencia médica válida para su adquisición al por mayor.

• Who can purchase lidocaine viscous wholesale from Mountainside Medical?

  Lidocaine viscous is available to licensed healthcare professionals and institutional buyers including medical clinics, dental and oral surgery practices, ENT and gastroenterology departments, EMS providers, medspas, hospitals, veterinary practices, and bulk procurement teams. A valid US medical license is required. To enquire about volume pricing or place a bulk order, contact the Mountainside Medical wholesale team at sales@mountainside-medical.com or +1 (888) 687-4334.