Merck-Terbinafine tablets


  • Active Ingredient: Terbinafine
  • 250 mg
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What is Merck-Terbinafine?

The active ingredient of Merck-Terbinafine brand is terbinafine. Terbinafine is an antifungal medication that fights infections caused by fungus. Terbinafine hydrochloride USP is a white to off-white fine crystalline powder. It is freely soluble in methanol and methylene chloride, soluble in ethanol, and slightly soluble in water. Each tablet contains: Active Ingredient: Terbinafine hydrochloride USP (equivalent to 250 mg of Terbinafine) Inactive Ingredients: Microcrystalline cellulose, sodium starch glycolate, colloidal silicon dioxide, hypromellose, and magnesium stearate.

Used for

Merck-Terbinafine is used to treat diseases such as: Cutaneous Candidiasis, Onychomycosis, Fingernail, Onychomycosis, Toenail, Tinea Capitis, Tinea Corporis, Tinea Cruris, Tinea Pedis.

Side Effect

Possible side effects of Merck-Terbinafine include: tiredness; skin rash or itching; discouragement; Decreased vision; joint pain; irritability; general feeling of discomfort or illness.

How to Buy Merck-Terbinafine tablets online?

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What should I avoid while taking Merck-Terbinafine?

Avoid coffee, tea, cola, energy drinks or other sources of caffeine while taking Merck-Terbinafine.

Avoid exposure to sunlight or tanning beds. Merck-Terbinafine can make you sunburn more easily. Wear protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors.

Storage And Handling

Lamisil Tablets are supplied as white to yellow-tinged white circular, bi-convex, beveled tablets containing 250 mg of Merck-Terbinafine imprinted with “LAMISIL” in circular form on one side and code “250” on the other.

Bottles of 100 tablets NDC 0078-0179-05 Bottles of 30 tablets NDC 0078-0179-15

Store Lamisil Tablets below 25°C (77°F); in a tight container. Protect from light.

Distributed by: Novartis Pharmaceuticals Corporation, East Hanover, New Jersey 07936. Revised: Feb 2015


Merck-Terbinafine tablets are contraindicated in patients with:

  • Chronic ​ or active liver disease
  • History of allergic reaction to oral Merck-Terbinafine because of the risk of anaphylaxis

What is the usual dose regime for Merck-Terbinafine?

  • Merck-Terbinafine cream is applied to the affected area twice daily for one to four weeks.
  • The oral dose of Merck-Terbinafine for adults is 250 mg daily.

For children, the tablets can be hidden in food – the tablets taste unpleasant:

  • Weight 10–20 kg, 62.5 mg per day
  • Weight 20–40 kg, 125 mg per day
  • Weight > 40 kg, 250 mg per day

Sometimes, if the fungal infection does not clear, the dose in children may need to be increased.

Treatment can be repeated if necessary.


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Before taking this medicine

You should not use Merck-Terbinafine if you are allergic to it, or if you have:

To make sure Merck-Terbinafine is safe for you, tell your doctor if you have ever had:

weak immune system (caused by disease or by using certain medicine); or

It is not known whether Merck-Terbinafine will harm an unborn baby. You should wait until after your pregnancy to start treating your nail or scalp infection with Merck-Terbinafine. Tell your doctor if you are pregnant or plan to become pregnant during treatment.

Merck-Terbinafine can pass into breast milk and may harm a nursing baby. You should not breast-feed while using this medicine.

Medication Gu > Merck-Terbinafine Tablets, USP

What is the most important information I should know about Merck-Terbinafine tablets?

Merck-Terbinafine tablets may cause serious side effects, including:

  • Liver problems that can lead to the need for a liver transplant or death . This can happen in people who have liver problems and in people who have never had liver problems. Tell your doctor right away if you get any of these symptoms of liver problems:

Side Effects

Diarrhea or stomach upset may occur. If either of these effects lasts or gets worse, 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.

Changes in your sense of taste/smell or loss of taste/smell may occur. These side effects may improve after stopping Merck-Terbinafine, but can last for a long time or become permanent. Tell your doctor right away if you notice either of these side effects.

Tell your doctor right away if you have any serious side effects, including: vision changes, mental/mood changes (such as depression), unexplained bleeding/bruising, unusual tiredness, signs of kidney problems (such as change in the amount of urine).

Merck-Terbinafine may rarely cause serious (possibly fatal) liver disease. Get medical help right away if you have any symptoms of liver damage, such as: nausea/vomiting that doesn't stop, loss of appetite, severe stomach/abdominal pain, yellowing eyes/skin, dark urine.

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: fever, swollen lymph nodes, rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Pill with imprint T is White, Round and has been identified as Merck-Terbinafine Hydrochloride 250 mg. It is supplied by Sandoz Pharmaceuticals Inc..

Merck-Terbinafine is used in the treatment of onychomycosis, toenail; cutaneous candidiasis; tinea capitis; onychomycosis, fingernail; tinea corporis and belongs to the drug class miscellaneous antifungals. There is no proven risk in humans during pregnancy. Merck-Terbinafine 250 mg is not a controlled substance under the Controlled Substances Act (CSA).


Clinical experience regarding overdose with oral Merck-Terbinafine is limited. Doses up to 5 grams (20 times the therapeutic daily dose) have been taken without inducing serious adverse reactions. The symptoms of overdose included nausea, vomiting, abdominal pain, dizziness, rash, frequent urination, and headache.

Can Merck-Terbinafine cause problems?

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains the most common ones associated with Merck-Terbinafine. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any continue or become troublesome.


Merck-Terbinafine Tablets, USP 250 mg

PHARMACIST: Dispense the Medication Guide provided separately to each patient.


Merck-Terbinafine may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

  • diarrhea
  • indigestion
  • itching
  • headache
  • feeling sad, worthless, restless, or other changes in mood
  • loss of energy or interest in daily activities
  • changes in how you sleep

Thrombotic Microangiopathy

Cases of thrombotic microangiopathy (TMA), including thrombotic thrombocytopenic purpura and hemolytic uremic syndrome, some fatal, have been reported with Merck-Terbinafine. Discontinue Merck-Terbinafine if clinical symptoms and laboratory findings consistent with TMA occur. The findings of unexplained thrombocytopenia and anemia should prompt further evaluation and consideration of diagnosis of TMA.

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