Athlete’s foot, ringworm, and jock itch are all common problems, and they’re all caused by fungal infections on your skin, and there are many options, like bifonazole and miconazole, to consider. Fortunately, you can treat most of them with an over-the-counter antifungal cream.
One of the most popular and effective medications for these infections is terbinafine hydrochloride cream. You may know it by the brand name Lamisil AT.
This article will give you a complete overview of what you need to know about using terbinafine HCl cream, including its benefits and any precautions you should take.
What is Terbinafine Hydrochloride Cream?
Terbinafine hydrochloride is an antifungal medication that belongs to a class of drugs called allylamines. Basically, it kills fungus.
Terbinafine works by blocking an enzyme called squalene epoxidase, which the fungus needs to build its cell membrane. Without a healthy cell membrane, the fungus can’t survive.
You can find terbinafine in different forms, including creams, gels, sprays, and solutions that you put directly on your skin, but other options like miconazole nitrate cream can also be effective. It also comes in tablet form that you swallow.
Uses of Terbinafine Hydrochloride Cream
Terbinafine hydrochloride cream is an antifungal medication you can buy over the counter to treat common fungal infections.
Tinea Pedis (Athlete’s Foot)
Athlete’s foot is a fungal infection of the foot, especially between the toes. It’s most common in people whose feet get very sweaty, such as athletes. It can cause itching, burning, and scaling, but can hypochlorous acid finally stop the itch?
Terbinafine cream can bring relief from these symptoms. To prevent reinfection, wear well-fitting, ventilated shoes and change your socks every day.
Tinea Corporis (Ringworm) & Tinea Cruris (Jock Itch)
Ringworm is a fungal infection that causes a circular rash that can look like rings. Jock itch is a fungal infection of the groin area that causes itching and redness.
Terbinafine can treat the itching, redness, and discomfort associated with these infections.
Tinea Versicolor (Pityriasis)
Tinea versicolor is a fungal infection that causes small, discolored patches on the skin. These patches may be lighter or darker than the surrounding skin.
To use terbinafine cream for tinea versicolor, apply a thin layer to the affected area once a day for 7 days.
How to use terbinafine hydrochloride cream
Terbinafine hydrochloride cream is available over the counter and is easy to use.
General application instructions
- Wash and dry the area you want to treat.
- Apply a thin layer of cream to the affected skin.
- Gently rub the cream into your skin until it vanishes.
- Wash your hands thoroughly. (Unless you’re treating your hands, of course.)
How often to use it
You’ll usually apply terbinafine hydrochloride cream once or twice per day.
The length of time you’ll need to use it depends on the type of infection you’re treating:
- Jock itch: 2 to 4 weeks
- Athlete’s foot: 2 to 6 weeks
- Ringworm: 4 weeks
It’s important to use the cream for the full treatment period, even if your symptoms get better.
Special considerations
Be sure to avoid getting terbinafine hydrochloride cream in your eyes, nose, or mouth. Do not use it inside the vagina.
Unless your doctor tells you otherwise, don’t use this cream on your scalp or nails.
Potential Side Effects
Like all medications, terbinafine hydrochloride cream can cause side effects.
Common Side Effects
Most people only experience mild side effects, such as:
- Slight burning, stinging, itching, or redness where you put on the cream
- Dry or peeling skin
These side effects usually go away on their own and don’t require medical attention.
Serious Side Effects (and when to seek medical attention)
Although rare, some people may experience more serious side effects. Seek immediate medical attention if you experience:
- Severe allergic reaction (rash, hives, trouble breathing, swelling)
- Worsening irritation or infection
It’s rare to have side effects throughout your body from a topical cream. However, if you notice anything unusual, let your doctor know.
Precautions and warnings
When you’re using any medication, it’s important to be aware of potential risks and side effects.
Contraindications
Don’t use terbinafine hydrochloride cream if you’ve ever had an allergic reaction to terbinafine or other antifungal medications known as allylamines.
General precautions
Before you start using terbinafine hydrochloride cream, tell your doctor about any other medications you’re taking and any allergies you have.
Remember, this cream is for external use only. Don’t swallow it, and keep it out of the reach of children.
Drug interactions
When you use a cream or ointment, very little of the medicine gets absorbed into your bloodstream. However, it’s still a good idea to be aware of possible interactions with other medications, especially if you’re using other topical treatments.
Be sure to give your doctor a list of all the medications you’re taking, including over-the-counter drugs and supplements.
Terbinafine Hydrochloride Cream During Pregnancy and Breastfeeding
If you’re pregnant or breastfeeding, talk with a doctor before using terbinafine hydrochloride cream. Here’s what to consider:
Pregnancy
Use terbinafine cream only if a doctor says it’s medically necessary. Animal studies haven’t shown any harm to the fetus, but there’s not much research on how it affects human pregnancies.
Breastfeeding
Talk with your doctor before using terbinafine cream while breastfeeding. It’s not clear how much of the medicine could get to the baby through topical use.
What about overdose and missed doses?
Overdose
Using too much of a topical cream may cause skin irritation. Terbinafine can be harmful if swallowed. If you think you or someone else has swallowed terbinafine, get medical attention right away.
Missed Doses
If you forget to apply a dose, do it as soon as you remember. If it’s almost time for your next dose, skip the missed dose. Don’t apply extra cream to make up for a missed dose.
Frequently Asked Questions
What should I avoid while using terbinafine hydrochloride cream?
While using terbinafine cream, it’s best to avoid applying other topical medications to the same area unless directed by your doctor. Also, avoid covering the treated area with airtight dressings or bandages unless instructed otherwise, as this can increase absorption and potentially lead to side effects. Steer clear of getting the cream in your eyes, nose, or mouth.
What kills fungus completely?
Completely eradicating a fungal infection depends on the type and severity. While many antifungals, including terbinafine, are effective at eliminating fungus, it’s essential to follow the prescribed treatment duration to ensure complete resolution. Some stubborn infections may require a combination of topical and oral medications.
How can I tell if terbinafine cream is working?
You’ll typically see gradual improvement in your symptoms, such as reduced itching, redness, and scaling, over the course of treatment. It’s crucial to continue using the cream for the entire prescribed duration, even if symptoms improve, to ensure the infection is fully cleared. If you don’t see improvement or if your symptoms worsen, consult your doctor.
What is the strongest antifungal cream?
The “strongest” antifungal cream depends on the specific fungus being treated and individual factors. Terbinafine is a potent option for many fungal infections, but other prescription-strength creams like ketoconazole or clotrimazole may be more suitable in certain cases. Your doctor can determine the most effective treatment for your specific condition.
Why was terbinafine discontinued?
Terbinafine hydrochloride cream has not been discontinued. It is still widely available under various brand names and as a generic medication. If you are experiencing difficulty finding it, it may be due to temporary supply chain issues or regional availability. Always consult with your pharmacist or doctor for the most up-to-date information.
Wrapping Up
Terbinafine hydrochloride cream is a powerful medicine for treating fungal skin infections if you use it the right way. But remember, this article is just for information. Always talk to your doctor or pharmacist for advice that’s specific to you. Make sure you understand how much to use and how often to use it.
It’s also really important to use the cream for as long as your doctor tells you to, even if your skin looks better. Following all the instructions will help you get the best results and get rid of that fungus for good!