Generic Lamisil

Common use

Lamisil is an anti-fungal antibiotic which used to treat tinea versicolor, a fungal infection that produces brown, tan, white spots on the trunk of the body or other fungal infections such as athlete's foot, jock itch, and ringworm. Lamisil works by killing sensitive fungi by interfering with the formation of the fungal cell membrane.



Dosage and direction

Take it orally with full glass of water. Swallow it without chewing. Usually it taken for 6 to 12 weeks.

The recommended dose is various from type of infection:

1. For onychomycosis:

Adults and teenagers 250 mg once a day for 6 to 12 weeks.

Lamisil is used in children just after doctor's permission.

2. For tinea corporis:

Adults and teenagers 250 mg once a day for 2 to 4 weeks.

Lamisil is used in children just after doctor's permission.

3. For tinea cruris (ringworm of the groin; jock itch):

Adults and teenagers 250 mg once a day for 2 to 4 weeks.

Lamisil is used in children just after doctor's permission.

4. For tinea pedis:

Adults and teenagers 250 mg once a day for 2 to 6 weeks.

Lamisil is used in children just after doctor's permission.

Note: this instruction presented here just for review. It's very necessary to consult with your doctor before using. It help you to get best results.



Precautions

Before using this medicine, consult your doctor or pharmacist if you have: a certain blood disorder, severe liver disease. Don't forget to tell your medical history, especial if it include lupus. Driving is not recommended while you taking this medication because it may caused your dizzy or less alert. Drinking alcohol during treatment may caused a fast heartbeat and flushing of the skin. Avoid the sun, tanning booths, and sunlamps and use a sunscreen and wear protective clothing when outdoors. Lamisil should not be used during pregnancy, becoming pregnant or lactating without doctor's advice. Do not use before breast-feeding without doctor's advice.



Contraindications

Lamisil is not allowed to people who have problems with their liver or kidneys, hypersensitive to any component of this dug.



Possible side effect

They may include an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Also the most possible side effects include:

joint pain or swelling, swollen glands, patchy skin color, or a butterfly-shaped skin rash over your cheeks and nose

fever, chills, body aches, flu symptoms;

changes in your vision;

weight loss due to taste changes;

scaly, itchy, and flaky skin rash;

fever, sore throat, and headache with a severe blistering, peeling, and red skin rash.

Less serious include:

stomach pain, heartburn, diarrhea;

headache;

tired feeling;

runny or stuffy nose, sore throat, cold symptoms;

mild skin rash or itching;

unusual or unpleasant taste in your mouth; or

decreased taste sensation.

If you experience one of them stop using Lamisil and tell your doctor as soon as possible. Also consult with your doctor about any side effect that seems unusual.





Drug interaction

Lamisil interact with follow medications:

Cyclosporine

Metoprolol

Nortriptyline

Warfarin

Also note that interaction between two medications does not always mean that you

must stop taking one of them. As usual it affects the the effect of drugs, so consult with your doctor about how it interactions are being managed or should be managed.



Missed dose

If you forgot to take your dose in time, please do it as soon as you remember. But do not take if it is too late or almost time for your next dose. Do not take double or extra doses. Take your usually dose next day in the same regularly time.



Overdose

Symptoms of Lamisil overdose may include: dizziness, stomach pain, nausea, vomiting, skin rash, or urinating more than usual. If you experience one of them call your doctor immediately.



Storage

Store at room temperature between 59-77 degrees F (15-25 degrees C) away from light and moisture, kids and pets. Do not use after expiration term.



Disclaimer

We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. Any specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.

Clinical Verification

Last Clinically Updated: August 15, 2026

Written By

Dr. Elena Vance, PharmD

Clinical Specialist in Neuropharmacology

Fact Checked By

Marcus Thorne, MS

Biomedical Data & FDA Label Verification

Medically Reviewed By

Dr. Arthur Campbell, MD

Board-Certified Psychiatrist (ABPN)