Lidocaine, also known as lignocaine, is an amino amide-type local anesthetic widely used for its numbing effects. It treats various conditions, including ventricular tachycardia, and provides local anesthesia or nerve blocks. When applied, lidocaine typically starts working within minutes and can last from 30 minutes to three hours.
Lidocaine is available in multiple topical forms, including gels, creams, liquids, sprays, eye drops, and patches.
Uses of Lidocaine
Relieving Itching and Pain from Skin Conditions:
Scrapes
Minor burns
Eczema
Insect bites
Treatment of Hemorrhoids and Anal/Genital Problems:
Itching around the vagina/rectum
Alleviating Discomfort from Medical Procedures:
Used as anesthesia for procedures such as sigmoidoscopy and cystoscopy
Treatment of Ventricular Tachycardia:
Used as an anesthesia in the treatment of this heart condition
Side Effects of Lidocaine
Common Side Effects:
Diarrhea
Stomach pain
Discomfort
Swelling
Nausea
Irritation
Vomiting
Loss of appetite
Itching
Serious Side Effects:
Seizures
Rash
Hives
Shortness of breath
Difficulty breathing
Difficulty swallowing
Fever
Chills
Consult your doctor if you experience any serious health problems.
Precautions
Allergies: Inform your doctor if you are allergic to lidocaine or similar drugs.
Medical Conditions: Discuss any medical history, such as low blood count, liver, intestinal, or kidney problems.
MRI: Inform testing personnel if you are scheduled for an MRI, as some brands may contain metals causing burns during the procedure.
Children: Use with caution in children due to increased sensitivity to side effects.
Pregnancy: Avoid use during pregnancy; discuss risks with your doctor.
Breastfeeding: The medication passes through breast milk but is unlikely to harm nursing infants. Consult your doctor before breastfeeding.
How to Use Lidocaine
Read Instructions: Follow all directions on the product package or as prescribed by a doctor.
Clean and Dry Area: Before applying, ensure the affected area is clean and dry.
Application: Apply a thin layer two to three times daily, or as directed.
Spray: Shake the canister, hold it 3-5 inches away, and spray until wet. Avoid eyes, nose, and mouth.
Foam: Shake thoroughly and apply to the affected area with a hand.
Avoid Large areas, waterproof bandages, plastic coverings, or heat application unless directed by a doctor.
Wash Hands: Immediately after use unless treating hands. Rinse with clean water if the product contacts the eyes, nose, or ears.
Infections: Do not use on infected areas or sores without consulting a doctor.
Interactions
Drug Interactions: Maintain a list of all products you use, including prescription and nonprescription drugs, and share it with your doctor and pharmacist.
Consultation: Do not start, stop, or change the dosage of any medications without consulting your doctor.
Missed Dose
Action: Take as soon as remember. If it is near the time for the next dose, skip the missed dose and resume your regular schedule.
Avoid: Do not double the dose to catch up.
Overdose
Accidental Overdose: Can cause harmful effects. If overdosed, contact medical professionals immediately.
Storage Instructions
Avoid Exposure: Keep away from heat, air, and light.
Safe Place: Store in a safe place, out of reach of children.
Lidocaine vs. Bupivacaine
Lidocaine
Bupivacaine
Known as lignocaine, an amino amide-type local anesthetic.
A prescription medication marketed under brand names like Marcaine and Sensorcaine.
Used to relieve itching and pain from skin conditions, hemorrhoids, and genital problems.
Used for reducing sensation in a specific area by injecting around a nerve or into the epidural space.
Functions by preventing nerves from sending pain signals to the brain, causing temporary numbness.
Works by blocking nerve impulses that send pain signals to the brain.
