Products with 20% Benzocaine
Maximum strength 20% benzocaine is a widely available topical anesthetic found in numerous over-the-counter (OTC) products aimed at temporarily numbing painful areas. These products come in several forms to suit different needs, with gels and liquids being the most common for oral use.
Here are some of the most recognized product types and brands containing 20% benzocaine:
- Oral Anesthetic Gels: Popular brands like Orajel Maximum Strength, Anbesol Maximum Strength, and Hurricaine Topical Anesthetic Gel contain 20% benzocaine and are specifically formulated for oral pain relief. They are often used for toothaches, gum irritation, canker sores, and minor dental procedures.
- Oral Anesthetic Liquids: These products, such as CVS Health Oral Anesthetic Liquid, offer a fast-acting numbing effect for various mouth pains. The liquid form can be useful for reaching sore areas in the back of the mouth or on the gums.
- Topical Sprays: Some products, like Dermoplast Pain, Burn & Itch Relief Spray, contain 20% benzocaine and are designed for application to minor cuts, scrapes, and burns on the skin. In a dental setting, professionals may use sprays for numbing before procedures.
- Other Forms: Benzocaine is also used in other specialized products, including hemorrhoidal ointments and certain first-aid swabs for insect bites and stings.
How 20% Benzocaine Works for Pain Relief
Benzocaine is a topical local anesthetic that works by temporarily blocking nerve signals in the treated area. When applied to a painful spot on the gums, mouth, or skin, it prevents nerves from sending pain signals to the brain, resulting in a numbing sensation. Products containing 20% benzocaine offer a potent concentration for a stronger and faster-acting numbing effect, providing immediate relief from pain and discomfort. Its effect is typically short-lived, which is suitable for temporary pain management.
Comparison of 20% Benzocaine vs. Other Topical Anesthetics
While 20% benzocaine is a powerful over-the-counter option, it is not the only topical anesthetic available. Other options, including different concentrations of benzocaine and alternative agents like lidocaine, offer varying levels of efficacy and duration.
Here is a comparison of 20% benzocaine with other common topical anesthetics:
| Feature | 20% Benzocaine (OTC) | 10% Benzocaine (OTC) | Lidocaine (OTC & Rx) | Compounded BLT Cream (Rx) |
|---|---|---|---|---|
| Efficacy | Maximum strength, more effective than 10% benzocaine for toothache | Effective for temporary relief, but less potent than 20% | Often considered the 'gold standard,' effective for various applications | Very potent compounded mix for specific procedures |
| Onset | Rapid, often within seconds to minutes | Rapid, similar to 20% but with less potency | Rapid, depending on formulation and concentration | Depends on formulation, can be very fast |
| Duration | Short-acting, ideal for temporary relief | Short-acting, similar to 20% | Longer duration than benzocaine | Varies based on formulation |
| Safety Risk | Risk of methemoglobinemia, especially in infants | Lower risk of methemoglobinemia than 20% in high doses | Lower risk of methemoglobinemia than benzocaine, but still possible | Higher risk due to high concentrations, not FDA-approved for these uses |
Important Safety Considerations
While effective for temporary pain, the use of 20% benzocaine, particularly oral sprays, carries important safety risks. The U.S. Food and Drug Administration (FDA) has issued warnings regarding these products.
Methemoglobinemia Risk
The most serious risk associated with benzocaine is methemoglobinemia, a rare but potentially fatal blood disorder. This condition reduces the amount of oxygen carried by the blood and can occur after a single use of benzocaine. The FDA specifically cautions against using benzocaine products for teething pain in children under 2 years of age.
Symptoms of methemoglobinemia include:
- Pale, gray, or blue-colored skin, lips, or nail beds
- Shortness of breath
- Fatigue or lack of energy
- Dizziness or lightheadedness
- Rapid heart rate
- Headache
If these symptoms appear after using a benzocaine product, seek immediate medical attention.
Proper Application and Usage
To minimize risks, always follow the directions on the product packaging carefully. General guidelines for proper application and usage should be strictly followed.
For more detailed safety information, you can review the FDA's drug safety communications.
Conclusion
For those suffering from minor oral pain, what has 20% benzocaine are often maximum strength, over-the-counter anesthetic gels and liquids like Orajel and Anbesol. These products provide rapid, temporary numbing for issues such as toothaches and canker sores. However, users must be aware of the associated risks, particularly methemoglobinemia, and follow usage instructions precisely. It is essential to reserve 20% benzocaine for temporary adult use and to consult a dentist or doctor for severe or persistent pain.
