What is Terbinafine Hcl: Uses, Warnings & Interactions

Updated Jan 13, 2021  •  Published Dec 30, 2020

Terbinafine Hcl overview

BRAND NAMES:

  • LamISIL, Terbinex

Generic Names:

  • Terbinafine Hcl

Uses:

  • Treats fungal infections.

Therapeutic Classes:

  • Antifungal

Forms:

  • Packet, Tablet

How it’s taken:

  • By mouth

What is Terbinafine Hcl used for?

Lamisil is a prescription-only medication that is used to treat fungal infections on the skin and nails that are caused by trichophyton. Patients diagnosed with athlete’s foot, jock itch and ringworm use this medication to relieve their symptoms including irritation and burning. Lamisil works by reducing the growth of fungi on the skin and nails. Lamisil is available as an oral granule and as an oral tablet.

What form(s) does Terbinafine Hcl come in

  • Packet

  • Tablet

What are common Terbinafine Hcl doses?

  • Tablet 250MG

  • Tube 15GM of 1%

  • Tube 30GM of 1%

  • Bottle 1GM of

  • Bottle 25GM of

  • Bottle 100GM of

Common Terbinafine Hcl prescriptions

  • Terbinafine HCl
    250mg tablet

  • Terbinafine HCl
    15gm of 1% tube of cream

  • Terbinafine HCl
    30gm of 1% tube of cream

How to take Terbinafine Hcl

  • Your doctor will tell you how much medicine to use. Do not use more than directed. Take it at the same time every day.

  • Tablets: Take it with or without food.

  • Oral granules: Take it with food.Sprinkle the oral granules on a spoonful of pudding or other soft, non-acidic food such as mashed potatoes. This mixture must be swallowed immediately without chewing. Do not use applesauce or fruit-based foods. If you need 2 packets of oral granules with each dose, you may sprinkle the content of both packets on 1 spoonful or 2 spoonfuls of non-acidic food.

  • Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses. It may take several months for your infection to clear up completely and for healthy nails to grow out and replace the infected nails.

  • This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.

  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose. If you miss a dose of terbinafine tablets, take it as soon as you can. If your next regular dose is less than 4 hours away, wait until then to use the medicine and skip the missed dose.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

  • This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.

  • Missed dose: Take a dose as soon as you remember. If it is almost time for your next dose, wait until then and take a regular dose. Do not take extra medicine to make up for a missed dose. If you miss a dose of terbinafine tablets, take it as soon as you can. If your next regular dose is less than 4 hours away, wait until then to use the medicine and skip the missed dose.

  • Oral granules: Take it with food.Sprinkle the oral granules on a spoonful of pudding or other soft, non-acidic food such as mashed potatoes. This mixture must be swallowed immediately without chewing. Do not use applesauce or fruit-based foods. If you need 2 packets of oral granules with each dose, you may sprinkle the content of both packets on 1 spoonful or 2 spoonfuls of non-acidic food.

  • Your doctor will tell you how much medicine to use. Do not use more than directed. Take it at the same time every day.

  • Tablets: Take it with or without food.

  • Take all of the medicine in your prescription to clear up your infection, even if you feel better after the first few doses. It may take several months for your infection to clear up completely and for healthy nails to grow out and replace the infected nails.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

What to do if you miss a dose of Terbinafine Hcl

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.

  • Oral routeAsk your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Terbinafine Hcl contraindications

  • This medicine is not right for everyone. Do not use it if you had an allergic reaction to terbinafine.

Terbinafine Hcl warnings

  • Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease, liver disease, blood problems, lupus, or a weak immune system (such as HIV infection or AIDS).

  • This medicine may cause the following problems:Liver problemsChanges to your sense of taste or smellDepression or other changes in your mood or behaviorSerious skin reactions

  • This medicine may make your skin more sensitive to sunlight. Wear sunscreen. Do not use sunlamps or tanning beds.

  • This medicine may make you bleed, bruise, or get infections more easily. Take precautions to prevent illness and injury. Wash your hands often.

  • Call your doctor if your symptoms do not improve or if they get worse. You may need to take this medicine for several weeks or months before your infection gets better.

  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

  • Yellow skin or eyes

Terbinafine Hcl interactions

  • Some foods and medicines can affect how terbinafine works. Tell your doctor if you are using any of the following:Caffeine (coffee, soda, chocolate)Cimetidine, cyclosporine, dextromethorphan, fluconazole, ketoconazole, rifampinBlood pressure medicineMAO inhibitorMedicine for heart rhythm problems (including amiodarone, flecainide, propafenone)Medicine to treat depression

  • Stop taking this medicine and check with your doctor right away if you have nausea or vomiting, dark-colored urine, pale stools, upper stomach pain, or yellow eyes or skin. These may be symptoms of a serious liver problem.

  • This medicine may affect your sense of taste or smell. Tell your doctor if you have changes to your sense of taste or smell, poor appetite, or weight loss.

  • Tell your doctor right away if you think this medicine is causing depression or other changes in your mood or behavior.

  • Rarely, this medicine can cause serious skin reactions. Call your doctor right away if you have blistering, peeling, or loose skin, red skin lesions, severe skin rash, sores or ulcers on the skin, or fever or chills while you are using this medicine.

  • This medicine may make your skin more sensitive to sunlight. Wear sunscreen. Do not use sunlamps or tanning beds. Tell your doctor right away if you have a red, scaly skin rash.

  • This medicine may make you bleed, bruise, or get infections more easily. Take precautions to prevent illness and injury. Wash your hands often.

  • Call your doctor if your symptoms do not improve or if they get worse. You may need to take this medicine for several weeks or months before your infection gets better.

  • Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.

Terbinafine Hcl side effects

Serious Side Effects

  • Unusual bleeding, bruising, or weakness

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Blistering, peeling, scaly, or red skin rash

  • Changes in mood or behavior, depression

  • Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes

  • Fever, chills, cough, sore throat, and body aches

Less Serious Side Effects

  • Headache

  • Stuffy or runny nose

  • Change in or loss of taste or smell