Lamisil (Terbinafine): Uses, Dosage, Side Effects, Interactions ...

What Is Lamisil?

Lamisil (terbinafine hydrochloride) is an antifungal antibiotic used to treat infections caused by fungus that affect the fingernails or toenails (onychomycosis). Oral granules are used to treat a fungal infection of scalp hair follicles in children who are at least 4 years old. Lamisil is available in generic form.

What Are Side Effects of Lamisil?

Lamisil may cause serious side effects including:

• changes in your sense of taste or smell,
• depressed mood,
• sleep problems,
• lack of interest in daily activity,
• feeling anxious or restless,
• pale skin,
• easy bruising,
• unusual bleeding (nose, mouth, vagina or rectum),
• purple or red pinpoint spots under your skin
• ,
• swelling,
• rapid weight gain,
• little or no urinating,
• blood in your urine or stools,
• weight loss due to taste changes or loss of appetite,
• nausea,
• upper stomach pain,
• vomiting,
• tiredness,
• dark urine,
• clay-colored stools,
• yellowing of the skin or eyes (jaundice),
• skin sores, and
• butterfly-shaped skin rash on your cheeks or nose that worsens in sunlight

Get medical help right away, if you have any of the symptoms listed above.

Common side effects of Lamisil include

• diarrhea,
• stomach upset,
• gas,
• nausea,
• stomach pain,
• diarrhea,
• headache,
• dizziness,
• spinning sensation,
• mild skin rash,
• itching, or
• temporary unusual or unpleasant taste or loss of taste in your mouth.

Dosage for Lamisil

To treat fingernail onychomycosis the dose of Lamisil is one 250 mg tablet once daily for 6 weeks. For toenail onychomycosis, take one 250 mg tablet once daily for 12 weeks.

What Drugs, Substances, or Supplements Interact with Lamisil?

Lamisil may interact with cimetidine, rifampin, other antifungal antibiotics, blood thinners, heart rhythm medications, antidepressants, MAO inhibitors (MAOIs), or beta-blockers. Tell your doctor all medications you use.

Lamisil During Pregnancy and Breastfeeding

During pregnancy, Lamisil should be used only when prescribed. Fungal nail infection treatment can usually wait until after you have had your baby. This medication passes into breast milk and may have undesirable effects on a nursing infant. Breast-feeding is not recommended while using this drug.

Additional Information

Our Lamisil (terbinafine hydrochloride) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.