Skin assessment
- Medical questionnaire and photo review
- Personalized treatment plan
- Prescription when appropriate
CA$175
per consultation
Modern Dermatology
Terbinafine
Prescription only
Terbinafine prescribed online
Terbinafine is an antifungal tablet for stubborn nail fungus and skin infections such as ringworm and jock itch. A Canadian-licensed medical professional reviews your history and decides if it is right for you.
Start my assessmentAt a glance
- Oral antifungal tablet (terbinafine)
- For nail fungus and stubborn ringworm or jock itch
- Nail courses last weeks to months
Why Modern Dermatology
- Canadian-licensed medical professionals, 100% online
- Prescriptions sent to your pharmacy or delivered
- Follow-up and refills through your Care Team
Used forRingworm and fungal skin infectionsJock itchFungal skin infections
Stop terbinafine and call your clinician, or get urgent care, if you have yellow skin or eyes, dark urine, pale stools, severe tiredness, or a blistering or spreading rash. These can be signs of a rare liver or skin reaction.
Choosing the right course for you
Your clinician sets the dose and the length of the course. Both depend on where the infection is and how severe it is. Nail infections need a longer course than skin infections.
Considerations include
- Site of the infection (nail, skin or scalp)
- Severity and number of nails affected
- Past antifungal treatments and how they worked
- Liver health and other medicines you take
- Pregnancy or breastfeeding
How terbinafine works
Terbinafine kills the fungus at its source
Fungi need a substance called ergosterol to build their cell membranes. Terbinafine blocks an enzyme that makes it. The fungus can no longer keep its membrane intact, and it dies.
The drug collects in skin, hair and nails. Nails grow slowly, so a healthy nail needs months to replace the infected one, even after the fungus is gone.
Modern Dermatology
Terbinafine
Prescription only
Recommended for
- Nail fungus (onychomycosis)
- Ringworm that did not clear with a cream
- Jock itch that keeps coming back
- Fungal infection of a large area or the scalp
Your clinician reviews your skin and history, and confirms that this treatment is right for you before prescribing.
Blocks ergosterol production
Fungus cannot build its membrane
Kills the fungus
Clears the infection, not only symptoms
Reaches the nail from inside
Collects in nails and skin
Lets healthy tissue grow in
New growth replaces damaged nail
How it works.
- 01
Tell us about your skin
Complete a quick medical questionnaire and upload a few photos of your skin concerns. No appointment needed.
- 02
Get your personalized treatment plan
A Canadian-licensed medical professional will review your information and recommend a personalized treatment plan, including prescriptions when appropriate. Most conditions can be assessed without a video consultation.
- 03
Start your treatment
Get your prescribed medications delivered right to your door. Medication costs are billed separately from your consultation.
- 04
Follow up on your progress
At a follow-up, your clinician can review your progress, discuss side effects and adjust your treatment if needed.
Clear answers.
Have more questions? See our full FAQ or Contact us.
Still have questions? Reach our care team at 514 111 1111
Start my assessmentYes, when it is appropriate for you. You fill in a short online intake, and a Canadian-licensed medical professional reviews it. Your clinician decides if terbinafine is right for you.
Terbinafine blocks a step that fungi need to build their cell membrane. The fungus weakens and dies. The drug stays in your skin and nails for some time after you stop, which helps clear the infection.
Skin infections often improve within a few weeks. Nail infections take much longer, because the nail must grow out. A nail course lasts weeks to months, and your clinician sets the length.
Many people see healthy nail growing in from the base within a few months. A full nail can take a year or more to grow out. Results vary, and some infections come back. Keeping feet clean and dry helps.
Common effects are headache, stomach upset, rash and a change in taste. Rare but serious effects include liver problems and severe skin reactions. Tell your clinician right away about yellow skin or eyes, dark urine or a spreading rash.
Tell your clinician if you have liver disease or had a reaction to terbinafine in the past. Kidney problems and some medicine combinations also need care. Your clinician checks these before prescribing, and some people need in-person care first.
For nail infections, options include itraconazole tablets and efinaconazole solution. For skin infections, creams such as clotrimazole, ciclopirox or ketoconazole can work. Your clinician chooses based on the site of the infection and your health.
Your clinician may add a topical antifungal for the skin. Some medicines interact with terbinafine, including certain antidepressants and heart medicines. Tell your clinician about every prescription, over-the-counter product and supplement you use.
It is usually not advised. Terbinafine passes into breast milk. Tell your clinician if you are pregnant, plan to be or are breastfeeding. Your clinician can discuss other options, such as a topical treatment.
Each consultation costs CA$175. Your pharmacy charges separately for medication. Ask your insurer whether your plan covers the prescribed treatment.
Yes. The original brand was Lamisil. Pharmacies in Canada now mostly supply generic terbinafine tablets with the same active ingredient, and Health Canada sets quality standards for generics. Your pharmacist can tell you which one they stock.
Your clinician decides if you need a refill, usually after a follow-up. Your Care Team sends the request to your pharmacy. Contact your Care Team before your supply runs out.
Safety checks during your course
Liver check
Your clinician may ask for a liver blood test before or during the course.
Symptom check-ins
Report yellow skin, dark urine, strong tiredness or a new rash right away.
Medicine review
Your clinician checks your other medicines for interactions before and during treatment.
Simple pricing for your skin care.
Medication costs are separate. Ask your insurer whether your plan reimburses online consultations.
Start my assessment
Related treatments
Your clinician can suggest another option when this one is not the right fit.