Lidocaine

What Is Lidocaine?

Lidocaine is a fast-acting local anesthetic commonly used in delay sprays to help men manage premature ejaculation [1]. Beyond its use in sexual wellness products, lidocaine is commonly used in medical and dental procedures to numb tissues before treatment. It is also found in certain creams, gels, and patches designed to relieve minor pain, itching, burns, insect bites, and skin irritation.

In delay sprays, it helps reduce excessive penile sensitivity, allowing for better ejaculatory control and longer-lasting sexual performance while maintaining pleasurable sensations.

History Of Lidocaine

Lidocaine is one of the most significant advancements in modern local anesthesia. It was synthesized in 1943 by Swedish chemist Nils Löfgren and his research team under the name Xylocaine. Lidocaine became the first amino amide–type local anesthetic, offering improved effectiveness and reliability compared to earlier alternatives [2].

The compound was later produced on a larger scale by researcher Inga Fischer, while Bengt Lundqvist conducted some of the earliest anesthesia experiments to evaluate its effectiveness. Following years of research and development, lidocaine was introduced to the market in 1948 by Astra [2].

Lidocaine Brand Name

Lidocaine is marketed under a variety of brand names worldwide, reflecting its widespread use across medical, dental, and topical applications. Some of the most recognized lidocaine-based products include Xylocaine-MPF, Xylocaine HCl, Lidoject 1, Lidoject 2, and Xylocaine Dental Cartridges [3].

Available Formulations

Lidocaine is available in many formulations-

• Injection solutions (e.g., 0.5%, 1%, 1.5%, 2%) for local infiltration, nerve blocks, epidural anesthesia, and intravenous use [4].
• Topical creams and ointments for skin pain, itching, or minor procedures [5].
• Topical sprays for anesthesia to treat minor burns, scrapes, and insect bites [6].
• Transdermal patches are used for pain caused by neuropathic pain, such as post-herpetic neuralgia [7].

What Is Lidocaine Used For?

The common uses of lidocaine include-

Local Anesthetic and Numbing Agent

Lidocaine is one of the most widely used local anesthetics due to its rapid onset of action and intermediate duration of effect. In dentistry, lidocaine is among the most commonly administered local anesthetics.

For topical and surface anesthesia, lidocaine is commonly used before endoscopic procedures, intubation, and minor ophthalmic interventions. Topical lidocaine has also demonstrated benefit in managing neuropathic pain, skin graft donor-site pain, and localized painful conditions [2].

Premature Ejaculation

Lidocaine is also used in the management of premature ejaculation. Both lidocaine 5% spray and lidocaine-prilocaine cream have been shown to improve ejaculatory control when applied prior to sexual intercourse [2].

Antiarrhythmic Use

Lidocaine is classified as a Class Ib antiarrhythmic agent and is administered intravenously for the treatment of ventricular arrhythmias. It is useful in conditions such as acute myocardial infarction, digoxin toxicity, and cardioversion-related arrhythmias [2].

Management of Seizures

Intravenous lidocaine may serve as a second-line treatment option for neonatal seizures when first-line therapy with phenobarbital fails to achieve seizure control [2].

Pain Management

Intravenous lidocaine infusions are used for the management of acute postoperative pain and chronic pain conditions.

Respiratory Applications

Inhaled lidocaine acts as a peripheral cough suppressant by reducing the sensitivity of the cough reflex. It is frequently used in patients undergoing intubation to minimize coughing and reduce airway irritation during recovery from anesthesia [2].

Benefits Of Lidocaine

• Provides quick pain relief and anesthesia.
• Produces reliable numbness for medical and dental procedures.
• Available as injections, creams, gels, sprays, patches, and infusions.
• Helps relieve neuropathic, postoperative, and localized pain.
• Improves ejaculatory control or premature ejaculation when applied topically.
• Offers a fast-acting formulation.

Lidocaine Mechanism Of Action

Lidocaine works by temporarily blocking the transmission of nerve signals that carry pain sensations to the brain. It achieves this by inhibiting sodium channels located in nerve cell membranes.

Under normal conditions, sodium ions enter nerve cells through these channels, generating and propagating electrical impulses. These impulses allow nerves to transmit signals, including pain, from one area of the body to another.

When lidocaine is administered, it enters the nerve cell and binds to sodium channels, preventing sodium ions from entering the cell. This blocks the initiation and conduction of nerve impulses, resulting in a temporary loss of sensation in the affected area.

In addition to its anesthetic effects, lidocaine also acts as a Class Ib antiarrhythmic agent. In cardiac tissue, it blocks sodium channels in damaged or overactive heart cells, helping to stabilize electrical activity and suppress abnormal ventricular arrhythmias [8].

In the treatment of premature ejaculation, topical lidocaine works by reducing the sensitivity of the glans penis. By blocking sodium channels in the sensory nerve endings of the penile skin, lidocaine decreases the transmission of tactile stimuli to the central nervous system.

This reduction in penile sensitivity helps delay the ejaculatory reflex, allowing for improved control over ejaculation and increased intravaginal ejaculatory latency time (IELT).

How To Take Lidocaine?

Lidocaine is available in several formulations, and the method of administration varies depending on the intended use.

Oral Tablets

• Swallow the tablet whole with water.
• They may be taken with or without food, depending on the product instructions.
• Do not crush, chew, or break the tablets unless advised by a healthcare provider.

Topical Spray

Lidocaine spray is applied directly to the affected area. For conditions such as premature ejaculation, the spray is applied to the glans penis a few minutes before sexual activity. Avoid exceeding the recommended number of sprays and wash off any excess product if directed.

Creams, Gels, and Ointments

Apply a thin layer to clean, dry skin or mucosal surfaces as directed. Gently spread the product over the affected area and avoid applying excessive amounts. Wash hands after application unless the hands are the treatment site.

Injection

Lidocaine injections are administered by trained healthcare professionals. Depending on the procedure, the medication may be given through local infiltration, nerve block, epidural injection, spinal administration, or intravenous injection.

Transdermal Patch

Apply the patch to clean, dry, and intact skin. Press firmly to ensure proper adhesion. Follow the recommended duration of wear and remove the patch after the prescribed period.

Lidocaine Warnings

• Do not exceed the recommended dose or apply more frequently than instructed.
• Avoid applying large amounts of lidocaine to the skin unless advised by a healthcare professional.
• Do not use lidocaine if you are allergic to other local anesthetics.
• Inform your doctor if you have-
  • Pseudocholinesterase deficiency.
  • Sepsis or severe infection.
  • Severe sunburn, rash, or skin disorders.
  • Bleeding disorders or low platelet counts.
  • Blood circulation problems.
  • Heart disease or heart rhythm disorders.
  • Lung disease or breathing problems.
  • Liver disease.
• Do not use in children without medical advice [9].

Lidocaine Side Effects

The common side effects of lidocaine include-

• Headache (3%)
• Back pain (3%)
• Shivering (2%)

In severe cases, it may result in-

• Seizures
• Loss of consciousness
• Fast heartbeat
• Trouble breathing
• Skin color turning blue
• Drowsiness [10].
• Confusion
• Slow heartbeat
• Difficulty controlling muscle movements
• Trouble speaking

If you notice any of these severe side effects, inform your doctor immediately.

Lidocaine Options at IyrinHealth Care

At Iyrincare, we offer Stud 5000 Spray, a lidocaine-based topical spray designed to help men manage penile sensitivity and improve signs of premature ejaculation. The spray is easy to apply, fast-acting, and intended for adult men looking for improved control during sexual activity.

• Stud 5000 Spray

Lidocaine Alternatives At IyrinHealth Care

For men seeking alternatives to topical lidocaine treatments, Iyrinhealth offers oral medications that address both premature ejaculation and erectile dysfunction. These include combination therapies containing dapoxetine and sildenafil, such as Cenforce D and Super P-Force.

Dapoxetine is a selective serotonin reuptake inhibitor (SSRI) specifically used to help delay ejaculation, while sildenafil enhances blood flow to the penis to support stronger and longer-lasting erections.

It is, however, important to note that these products should be used under the guidance of a qualified healthcare professional to ensure they are appropriate for your individual health needs and medical history.

• Cenforce D
• Super P-Force