Lamisil (terbinafine hydrochloride) is a leading oral and topical antifungal medication prescribed for the treatment of a variety of fungal infections. Its active ingredient works by inhibiting a key enzyme necessary for fungal cell membrane synthesis, leading to fungal cell death. Clinically proven and trusted by dermatologists worldwide, it offers a targeted approach to eradicating stubborn infections, promoting faster recovery and reducing the risk of recurrence. This makes it a first-line choice for both patients and healthcare providers seeking reliable antifungal therapy.

Features

• Contains terbinafine hydrochloride as the active ingredient
• Available in oral tablet and topical cream/spray formulations
• Targets squalene epoxidase, an enzyme critical for ergosterol synthesis in fungal cells
• Exhibits broad-spectrum activity against dermatophytes, yeasts, and certain molds
• Designed for systemic absorption (oral) or localized action (topical)
• Manufactured under strict pharmaceutical quality controls

Benefits

• Effectively eliminates the causative fungi, resolving infection at the source
• Reduces symptoms such as itching, redness, scaling, and discomfort
• Promotes healthier skin, hair, or nails by clearing the infection
• Minimizes the probability of reinfection when used as directed
• Offers convenient once-daily dosing for oral tablets
• Available in formulations suited for different infection sites and severities

Common use

Lamisil is commonly prescribed for fungal infections including tinea pedis (athlete’s foot), tinea cruris (jock itch), tinea corporis (ringworm), and onychomycosis (fungal nail infections). It is also used off-label for certain cutaneous candidiasis and pityriasis versicolor cases, under medical supervision.

Dosage and direction

For oral tablets in adults: typically 250 mg once daily. Treatment duration varies: 6 weeks for fingernail infections, 12 weeks for toenail infections, and 2–6 weeks for skin infections, as determined by a physician. Topical formulations should be applied thinly to affected and surrounding areas once or twice daily, as directed. Always complete the full course of therapy even if symptoms improve earlier.

Precautions

Inform your healthcare provider of any liver, kidney, or immune system disorders. Regular monitoring of liver function may be advised during oral treatment. Avoid use in children without medical advice. Topical Lamisil is for external use only; avoid contact with eyes, mouth, and mucous membranes.

Contraindications

Hypersensitivity to terbinafine or any component of the formulation; chronic or active liver disease; severe renal impairment (CrCl ≤50 mL/min).

Possible side effect

Common: headache, gastrointestinal disturbances, taste disturbances, rash. Less common: liver enzyme elevations, hematological changes. Topical: local irritation, itching, redness. Seek medical attention for signs of allergic reaction or severe side effects.

Drug interaction

May interact with CYP2D6 substrates (e.g., antidepressants, beta-blockers), rifampicin, cimetidine. Oral contraceptives and other medications metabolized by the liver may require monitoring. Always disclose all current medications to your prescriber.

Missed dose

If a dose is missed, take it as soon as remembered unless it is nearly time for the next dose. Do not double the dose. For topical products, apply as soon as recalled and resume the regular schedule.

Overdose

Symptoms may include nausea, vomiting, abdominal pain, dizziness. In case of suspected overdose, seek immediate medical attention or contact a poison control center. Supportive measures are recommended.

Storage

Store at room temperature (15–30°C), in a dry place, away from light and moisture. Keep out of reach of children and pets. Do not use after the expiration date.

Disclaimer

This information is for educational purposes and does not replace professional medical advice. Always consult a healthcare provider for diagnosis, treatment choices, and personalized guidance. Use only as prescribed.

Reviews

“After struggling with persistent nail fungus for years, a 12-week course of Lamisil tablets finally cleared it completely. No side effects except a temporary metallic taste.” – James L., verified patient.

“My dermatologist prescribed Lamisil cream for athlete’s foot. Itchiness reduced within days, and the infection was gone in two weeks. Highly effective.” – Maria P.

“Used topical spray for jock itch. Worked faster than OTC options. Appreciate the clinical strength and reliability.” – David K.