This medication is used to treat a certain type of fungal infection of the scalp (tinea capitis). Terbinafine belongs to a class of drugs known as antifungals. It works by stopping the growth of fungus.
Read the Patient Information Leaflet provided by your pharmacist before you start taking terbinafine. If you have any questions, consult your doctor or pharmacist.
Take this medication by mouth with food, usually once a day, or as directed by your doctor. Sprinkle the contents of 1 packet on a spoonful of pudding or other soft food such as mashed potatoes. Do not use acid foods such as fruit or applesauce. Swallow all of the mixture without chewing. If your doctor has directed you to take 2 packets for each dose, then sprinkle the contents of 2 packets onto 1 or 2 spoonfuls of the correct type of soft food, and swallow as directed above.
Dosage is based on your body weight, medical condition, and response to treatment.
This medication work best when the amount of medicine in your body is kept at a constant level. Therefore, take this drug at evenly spaced intervals.
Continue to take this medication until the full prescribed amount is finished. Stopping the medication too early may allow the fungus to continue to grow, which may result in a return of the infection.
Tell your doctor if your condition persists or worsens after 6 weeks.
Headache, vomiting, diarrhea, nausea, upset stomach, stuffy/runny nose, cough, or temporary change or loss of taste may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Get medical help right away if you have any very serious side effects, including: new signs of infection (such as fever, chills, persistent sore throat), swollen lymph glands, vision changes, mouth sores, unusual change in the amount of urine, pink/bloody urine, chest pain, fast/irregular heartbeat, unusual tiredness, persistent dry cough, trouble breathing.
This drug has rarely caused very serious (possibly fatal) liver disease. Get medical help right away if you develop symptoms of liver disease, including: persistent nausea/vomiting, loss of appetite, severe stomach/abdominal pain, dark urine, yellowing eyes/skin.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Before taking terbinafine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: liver disease.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease, immune system problems, lupus.
Limit alcoholic beverages. Daily use of alcohol may increase your chance for serious side effects.
This medication may make you more sensitive to the sun. Avoid prolonged sun exposure, tanning booths, and sunlamps. Use a sunscreen and wear protective clothing when outdoors.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.
This medication passes into breast milk and may have undesirable effects on a nursing infant. Therefore, breast-feeding is not recommended while using this drug. Consult your doctor before breast-feeding.
Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
Some products that may interact with this drug include: warfarin, drugs affecting liver enzymes that remove terbinafine from your body (such as amiodarone, cimetidine, rifampin, azole antifungals such as fluconazole/ketoconazole), drugs removed from your body by certain liver enzymes (such as tricyclic antidepressants, SSRI antidepressants, beta blockers, cyclosporine, dextromethorphan, thioridazine, drugs to treat heart rhythm problems, monoamine oxidase inhibitors type B such as rasagiline).
If overdose is suspected, contact a poison control center or emergency room right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.
Do not share this medication with others.
This medication has been prescribed for your current condition only. Do not use it later for another infection unless your doctor directs you to do so. A different medication may be necessary in that case.
Laboratory and/or medical tests (e.g., complete blood counts, liver function tests) should be performed before you start terbinafine and periodically during your treatment to check for side effects. Consult your doctor for more details.
If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not double the dose to catch up.
Store at room temperature at 77 degrees F (25 degrees C) away from light and moisture. Brief storage between 59-86 degrees F (15-30 degrees C) is permitted. Do not store in the bathroom. Keep all medicines away from children and pets.
Information last revised October 2015. Copyright(c) 2015 First Databank, Inc.
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