What is Methyl Aminolevulinate: Uses, Dosage, Side Effects and More

Methyl aminolevulinate is a special medication that helps treat certain skin conditions by making abnormal cells more sensitive to light. It's applied directly to your skin and works together with a specific type of light therapy to target problem areas.

This treatment approach is called photodynamic therapy, and it offers a gentler alternative to surgery for some skin conditions. Your doctor applies this medication to the affected area, and after a waiting period, uses a special light to activate it.

What is Methyl Aminolevulinate Used For?

Methyl aminolevulinate treats actinic keratosis, which are rough, scaly patches on sun-damaged skin. These patches can sometimes develop into skin cancer if left untreated, so addressing them early is important.

Your doctor might also use this medication for certain types of basal cell carcinoma, a common form of skin cancer. It's particularly helpful for treating areas where surgery might be challenging, such as on your face or other cosmetically sensitive areas.

Some doctors use methyl aminolevulinate for other skin conditions like certain types of skin cancer or precancerous lesions. However, these uses are less common and require careful evaluation by your healthcare provider.

How Does Methyl Aminolevulinate Work?

Methyl aminolevulinate works by accumulating in abnormal skin cells and making them extremely sensitive to light. When your doctor applies this medication, it gets absorbed more readily by damaged or abnormal cells than by healthy skin.

After the medication has been on your skin for several hours, your doctor uses a special red light to activate it. This light causes the medication to produce substances that destroy the abnormal cells while leaving healthy skin mostly unaffected.

This is considered a targeted treatment because it specifically focuses on problem areas. The medication doesn't work like a typical cream that you might apply daily - it requires professional application and light activation to be effective.

How Should I Take Methyl Aminolevulinate?

Methyl aminolevulinate is only applied by healthcare professionals in a clinical setting. You won't be applying this medication at home, as it requires specialized equipment and expertise.

Before your appointment, your doctor will likely ask you to avoid sun exposure and certain medications that make you sensitive to light. You should also avoid applying other topical treatments to the area being treated for a few days beforehand.

During the procedure, your doctor will clean the treatment area and apply the medication as a cream or gel. You'll then need to wait in a darkened room for about 3 hours while the medication is absorbed into your skin.

After the waiting period, your doctor will remove any excess medication and expose the treated area to a special red light for about 8-10 minutes. You'll need to wear protective eyewear during this light exposure.

How Long Should I Take Methyl Aminolevulinate For?

Most people need only one treatment session with methyl aminolevulinate. The entire process from application to light therapy happens in a single visit to your doctor's office.

However, some conditions may require a second treatment session, typically scheduled 3 months after the first one. Your doctor will examine the treated area during follow-up visits to determine if additional treatment is needed.

The healing process continues for several weeks after your treatment. You'll likely have follow-up appointments to monitor your progress and ensure the treatment was successful.

What Are the Side Effects of Methyl Aminolevulinate?

Most people experience some redness and burning sensation in the treated area during and after light exposure. This is completely normal and shows that the treatment is working as intended.

Here are the most common side effects you might experience in the days following treatment:

• Redness and swelling in the treated area
• Mild to moderate pain or burning sensation
• Crusting or scabbing as the area heals
• Temporary darkening or lightening of the skin
• Mild itching as the skin regenerates

These effects typically improve within 1-2 weeks as your skin heals. Your doctor may recommend pain relievers or cooling treatments to help manage any discomfort.

Less common but more serious side effects can include severe pain, extensive blistering, or signs of infection. While these are rare, they require immediate medical attention if they occur.

Some people may experience allergic reactions to the medication, though this is uncommon. Signs include severe itching, widespread rash, or difficulty breathing.

Who Should Not Take Methyl Aminolevulinate?

Methyl aminolevulinate isn't suitable for everyone. Your doctor will carefully evaluate whether this treatment is right for your specific situation.

You shouldn't receive this treatment if you're allergic to methyl aminolevulinate or any of its components. People with certain genetic conditions that make them extremely sensitive to light also can't use this medication.

If you're pregnant or breastfeeding, your doctor will likely recommend waiting until after this period. While there's no definitive evidence of harm, safety data is limited for these situations.

People with certain medical conditions need extra caution. These include those with compromised immune systems, active infections in the treatment area, or conditions that affect wound healing.

If you're taking medications that increase sun sensitivity, your doctor may need to adjust your treatment plan. This includes certain antibiotics, diuretics, and some psychiatric medications.

Methyl Aminolevulinate Brand Names

Methyl aminolevulinate is available under the brand name Metvix in many countries. This is the most commonly recognized brand name for this medication.

In some regions, you might encounter other brand names or formulations. Your doctor will use whatever preparation is available and appropriate for your specific condition.

The active ingredient remains the same regardless of the brand name, but the concentration and specific formulation may vary slightly between manufacturers.

Methyl Aminolevulinate Alternatives

Several other treatments can address similar skin conditions. Aminolevulinic acid (ALA) is another photosensitizing medication that works similarly but has different characteristics and side effects.

Traditional treatment options include surgical removal, liquid nitrogen freezing (cryotherapy), or topical medications like imiquimod or 5-fluorouracil. Each approach has its own benefits and drawbacks.

For some conditions, your doctor might recommend laser therapy, chemical peels, or other dermatological procedures. The best choice depends on your specific condition, its location, and your overall health.

Your doctor will help you weigh the pros and cons of each option to determine what's most appropriate for your situation.

Is Methyl Aminolevulinate Better Than Aminolevulinic Acid?

Both methyl aminolevulinate and aminolevulinic acid (ALA) are effective photosensitizing medications, but they have some differences. Methyl aminolevulinate may penetrate deeper into the skin and has a longer incubation time.

Some studies suggest that methyl aminolevulinate might be more effective for certain types of lesions, particularly thicker ones. However, ALA has been used longer and has more extensive research behind it.

The choice between these medications often depends on your specific condition, its characteristics, and your doctor's experience and preference. Both treatments have similar success rates for most approved uses.

Your doctor will consider factors like the type and location of your lesions, your skin type, and your medical history when choosing between these options.