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MEDICAL INFORMATION
Lamisil Key Facts
About Lamisil
Lamisil contains the active ingredient terbinafine hydrochloride. Terbinafine is an antifungal, used to treat fungal skin infections, including:
- Athlete’s foot (tinea pedis)
- Fungal nail infections
- Ringworm (tinea capitis)
- Jock itch/Dhobie itch (tinea cruris)
Lamisil is available with a prescription and over the counter, as Lamisil once. NowPatient offers Lamisil tablets or generic terbinafine as a treatment for fungal nail infections only, following an online consultation with a prescribing clinician.
Key facts of Lamisil
- For the treatment of fungal infections
- Lamisil can take up to 3 months to work for nail infections
- Lamisil has some common side effects which include skin irritation when used topically and stomach pain when taken by mouth
- It can be dangerous if you take Lamisil with certain medications. If you’re not sure if it is safe, discuss this with the prescribing clinician
- Make sure you finish the course of Lamisil. Stopping treatment too soon may allow the fungal infection to come back
Who is Lamisil suitable for?
Lamisil tablets, cream and gel are suitable for adults and children aged 1 and over. Creams, gels and sprays available to buy in pharmacies are suitable for patients aged 16 years and over. Terbinafine in solution form is only suitable for adults 18 years of age and over.
Who is Lamisil not suitable for?
Lamisil may not be suitable for some people. To make sure it’s safe for you, speak to the prescribing clinician before taking Lamisil if you:
- Have had an allergic reaction to terbinafine in the past
- Have ever had liver disease
- Have kidney problems
- Are pregnant, trying to get pregnant or are breastfeeding
How and where to get Lamisil?
You can buy Lamisil safely and securely from NowPatient. You can start a consultation today for free and if you qualify for treatment, you only pay for the cost of the medication. Delivery is made to your home or office from our registered pharmacy.
Our service is certified, safe and effective, and we only ever treat conditions. If you book a consultation with a prescribing clinician for the treatment of a fungal nail infection, you can discuss if Lamisil is a suitable treatment option for you.
At the end of the consultation, the clinician will decide if a treatment plan is suitable for you. If it is, the clinician will issue you with a prescription which can then be ordered, paid for and delivered directly to your chosen address by NowPatient.
Dosage and strength for Lamisil for fungal toenail infections
Lamisil is available as 250 mg tablets when used for fungal nail infections.
Information about how to take Lamisil for fungal nail infections
The typical dose of Lamisil tablets is 250 mg once daily for up to 3 months. Swallow the tablet whole with a glass of water. Take oral Lamisil with or without food at the same time each day.
Continue taking Lamisil until the course is finished. If you stop using your Lamisil too early, the fungal infection may come back. Speak to your healthcare provider for further patient information.
What happens if you take too much Lamisil?
If you take more than prescribed, then it can lead to some unpleasant side effects. You should talk to your doctor or reach out to one of our prescribing clinicians, if you have taken too much Lamisil and you experience any side effects.
What are the side effects of Lamisil?
Side effects of Lamisil are split into common and serious.
Common side effects include:
- Skin Rash
- Skin reactions
- Headache
- Diarrhoea
- Nausea or vomiting
- Loss of appetite
- Losing your sense of taste
- Abdominal pain
- Indigestion
- Muscle or joint pain
- Changes in vision
Serious side effects include:
- Liver problems – symptoms include yellowing of the whites of your eyes and/or skin, pale stools and dark urine. These can be signs of a change in your liver function
- Bruising more easily
- Unusual tiredness
- Inflamed pancreas
- Muscles weakness or pain
If you experience any serious side effects, you should contact NHS 111.
If you experience a serious allergic reaction with the signs shown below you should contact emergency services on 999.
- Hives
- Your lips, mouth, throat or tongue suddenly become swollen
- You’re breathing very fast or struggling to breathe (you may become very wheezy or feel like you’re choking or gasping for air)
- Your throat feels tight or you’re struggling to swallow
- Your skin, tongue or lips turn blue, grey or pale (if you have black or brown skin, this may be easier to see on the palms of your hands or soles of your feet)
- You suddenly become very confused, drowsy or dizzy
- Someone faints and cannot be woken up
Information about taking Lamisil at the same time as other medications or herbal supplements
There is not enough evidence to suggest there are any drug interactions between herbal supplements and Lamisil. In any event, you should let your prescribing clinician know if you are taking any herbal supplements.
Tell your doctor or pharmacist if you are taking any of the following medications when starting treatment with Lamisil.
- Cimetidine
- Cyclosporine
- Fluconazole, kketoconazole
- Monoamine oxidase type B (MAO-B) inhibitors such as rasagiline
- Selective serotonin reuptake inhibitors (SSRIs) such as citalopram
- Blood thinners such as warfarin
- Codeine or tramadol
Why might Lamisil not work for fungal nail infections?
Lamisil may not work for you if the fungal infection has become resistant to terbinafine. Speak to your doctor if terbinafine has stopped working for you.
Can Lamisil taken for fungal nail infections be taken long term?
Lamisil tablets or solution are normally taken or used for up to 3 months when treating fungal nail infections. You should speak to your doctor if your need to use this medication for longer.
Is there a herbal Lamisil?
No. Herbal Lamisil does not exist. If you have been marketed such a formulation, it may be fake.
Should I avoid any particular food or drink when taking Lamisil?
Lamisil tablets may increase the effects of caffeine, so it’s a good idea to not have too much caffeine while taking these tablets. Caffeine is found in coffee, tea, energy drinks and chocolate. Otherwise, you can eat and drink as normal while using or taking Lamisil.
What lifestyle changes can I make to help me with fungal nail infections?
To prevent fungal nail infections:
- Treat athlete’s foot immediately, to avoid it spreading to nails
- Keep your feet clean and dry
- Wear clean socks
- Do not share nail clippers or scissors
Alternatives to Lamisil
Alternatives for the treatment of fungal nail infections include Loceryl nail lacquer.
Sources
Medical Disclaimer
NowPatient has taken all reasonable steps to ensure that all material is factually accurate, complete, and current. However, the knowledge and experience of a qualified healthcare professional should always be sought after instead of using the information on this page. Before taking any drug, you should always speak to your doctor or another qualified healthcare provider.
The information provided here about medications is subject to change and is not meant to include all uses, precautions, warnings, directions, drug interactions, allergic reactions, or negative effects. The absence of warnings or other information for a particular medication does not imply that the medication or medication combination is appropriate for all patients or for all possible purposes.
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FAQs
Answers to Popular Questions About Lamisil
What is Lamisil?
Lamisil is a brand-name antifungal medication containing terbinafine hydrochloride. It is manufactured by Novartis and is available as 250 mg tablets (prescription-only) and as a 1% cream (available over the counter). Lamisil is used to treat fungal infections of the skin and nails, including athlete’s foot, ringworm, jock itch, and onychomycosis (fungal nail infections). The tablet form is one of the most effective treatments for fungal nail infections, with cure rates of 70–80% for toenail infections.
What is the difference between Lamisil tablets and Lamisil cream?
Lamisil tablets (250 mg terbinafine) are prescription-only and used for fungal nail infections and widespread or resistant skin fungal infections. They work systemically, reaching the nails through the bloodstream. Lamisil cream (1% terbinafine) is available over the counter and is used for superficial skin fungal infections such as athlete’s foot and ringworm. The cream is applied topically and works locally. For fungal nail infections, oral treatment is almost always required as topical treatments cannot penetrate the nail plate effectively.
How does Lamisil work?
Lamisil contains terbinafine, which works by inhibiting the enzyme squalene epoxidase in the fungal cell. This enzyme is essential for the production of ergosterol, a key component of the fungal cell membrane. Blocking this enzyme causes a toxic accumulation of squalene and a deficiency of ergosterol, leading to fungal cell death. Terbinafine is fungicidal (kills fungi) rather than merely fungistatic, which contributes to its high cure rates, particularly for dermatophyte infections.
How do I take Lamisil tablets for nail infections?
Take one Lamisil 250 mg tablet once daily with water. Treatment duration depends on the infection site: fingernail infections typically require 6 weeks to 3 months, while toenail infections usually require 3 to 6 months. The tablet can be taken with or without food. It is important to complete the full course even though the nail will not appear cured during treatment — new healthy nail growth replaces the infected nail over several months after treatment finishes. Full cosmetic improvement may take 6–12 months after completing the course.
How do I use Lamisil cream?
Apply Lamisil 1% cream thinly to the affected area once or twice daily, gently rubbing it in. For athlete’s foot, apply for 1 week. For ringworm and jock itch, apply for 1–2 weeks. Clean and dry the affected area before application. Continue treatment for the recommended duration even if symptoms improve earlier to prevent recurrence. Wash your hands after application.
What are the side effects of Lamisil tablets?
Common side effects of oral Lamisil include headache, gastrointestinal symptoms (nausea, diarrhoea, abdominal pain, indigestion), skin rash, and musculoskeletal pain. Uncommon but important side effects include taste disturbance (which is usually reversible), liver enzyme elevations, and rarely severe liver injury. Very rarely, serious skin reactions (Stevens-Johnson syndrome) and blood disorders can occur. Liver function tests should be checked before starting treatment and monitored if treatment continues beyond 6 weeks. Report any signs of jaundice, dark urine, or persistent nausea.
Can I buy Lamisil without a prescription?
Lamisil cream is available over the counter from pharmacies for skin fungal infections. Lamisil tablets (250 mg) require a prescription due to the need for liver function monitoring and potential drug interactions. Generic terbinafine 250 mg tablets are also available on prescription and are bioequivalent to Lamisil at a lower cost. You can obtain a prescription through your GP or online services like NowPatient.
Does Lamisil interact with other medications?
Terbinafine is metabolised by CYP2D6 and can inhibit this enzyme. It may increase levels of drugs metabolised by CYP2D6 including tricyclic antidepressants, SSRIs (particularly paroxetine and fluoxetine), beta-blockers, and tamoxifen. Rifampicin reduces terbinafine levels, while cimetidine increases them. Terbinafine may reduce the effectiveness of ciclosporin. Always inform your prescriber of all current medications before starting Lamisil tablets.
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