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Benzocaine is a medicine that works quickly to numb the area and ease pain for a short time. Commonly found in oral gels, lozenges, ear drops, and male delay sprays such as Largo Spray, this compound has become a staple in over-the-counter (OTC) pain management products. In this detailed guide, we will explore all aspects of Benzocaine from its medical uses to potential risks and how to use it safely.
Benzocaine is a local anesthetic belonging to the ester group of anesthetics. It works by numbing specific areas of the body by blocking nerve signals. It was first synthesized in 1890 and began clinical use in the early 1900s.
It is widely used because of its affordability, fast action, and minimal systemic absorption when used correctly.
This ingredient works by blocking the voltage-gated sodium channels in nerve membranes. This stops sodium ions from entering the nerves, which prevents them from sending pain signals to the brain.
Its rapid onset makes it particularly effective for oral pain relief and in products like delay sprays for men.
This ingredient is used to provide temporary relief from:
It is available in various forms and strengths. Below is a chart with common concentrations:
| Form | Typical Concentration |
|---|---|
| Gel/Cream | 5% – 20% |
| Spray | 5% – 20% |
| Lozenge | 5% – 15% |
| Ear Drops | Combined with antipyrine |
In Largo Spray: Usually 10–20% Benzocaine concentration; 1 to 3 sprays are applied directly to the penis.
This ingredient is not safe for infants under 2 years due to the risk of methemoglobinemia, a condition that affects the blood’s ability to carry oxygen.
Quick Reference Table:
| Severity | Symptoms |
| Mild | Redness, stinging, numbness |
| Moderate | Irritation, rash |
| Severe | Methemoglobinemia, seizures |
| Feature | Benzocaine | Lidocaine |
| Type | Ester anesthetic | Amide anesthetic |
| Onset | 30 seconds – 3 minutes | 1–5 minutes |
| Duration | Short | Longer |
| Ideal for | Topical, oral, and sprays | Injections, topical |
While Lidocaine is mostly used in hospitals and clinics, Benzocaine is still a popular option for over-the-counter and cosmetic products like Largo Spray.
8. Use of Benzocaine in Delay Sprays (e.g., Largo Spray)
In 2003, a patient who underwent an endoscopy and received a topical benzocaine spray developed methemoglobinemia, requiring emergency treatment. Though rare, such cases underline the need for correct usage and dosage.
Yes, in small topical doses. Avoid frequent application over large areas.
No, it only offers temporary relief lasting a few minutes to hours.
Generally not recommended due to the risk of systemic absorption.
Infants can develop methemoglobinemia, even after minimal exposure.
Use only under a doctor’s guidance. Do not apply to the nipples or breast area.
If you can find genuine and safe Benzocaine-based products such as Largo Spray or Orajel on behtarsehat.pk. All products are sourced from trusted manufacturers and delivered discreetly across Pakistan.
Benzocaine is a powerful and accessible solution for managing local pain, oral discomfort, and even sexual performance concerns. However, like any medication, it must be used with care. Always read labels, follow usage instructions, and consult a healthcare provider when in doubt.
