What's this test for?

This test is ideal if you're being treated for a fungal infection like aspergillosis, blastomycosis, histoplasmosis, or onychomycosis with itraconazole and need to make sure the drug is working at the right level in your body. Because fungal infections often require long-term treatment, this test helps confirm the medication is being absorbed properly and staying at a level strong enough to fight the infection without building up to unsafe amounts. It's especially useful if you're not seeing expected improvement or if you're concerned about side effects.

What's included in this test?

This test measures the amount of itraconazole circulating in your blood, which reflects how well your body is absorbing and processing the medication. Because itraconazole binds tightly to proteins in the blood and doesn't reach certain body compartments well, checking blood levels directly is the most reliable way to know if you're getting a therapeutic dose.

What happens after I get my results?

Your itraconazole level will show up in your account along with the expected therapeutic range so you can see exactly where your result falls. If your level is too low, next steps might include reviewing how you're taking the medication (with food, timing, spacing from other drugs) and retesting to confirm absorption improves; if it's too high, cutting back or spacing doses may be needed, and very high results paired with symptoms like nausea, vision changes, or liver issues should prompt you to seek medical care right away. You can download a standard lab report from your account at any time, and the trends feature lets you track your levels over multiple tests during your treatment course.

How can I naturally support antifungal treatment success?

While itraconazole itself needs to be taken as directed, you can support your body's response by taking doses with food or an acidic drink like cola, since stomach acid helps absorption. Staying well hydrated, avoiding alcohol, and getting good sleep can help your liver process the medication more efficiently. Avoiding other medications or supplements that interact with itraconazole (check labels for antacids, certain heart or cholesterol drugs) also helps keep levels steady.

When will I get my results?

Results are typically ready within about 7 days of your blood draw. Once processed, they'll be posted directly to your online account, where you can view the values and download the full report.

Who should consider this test?

Anyone currently taking itraconazole for a fungal infection, especially for a long-term condition like histoplasmosis, blastomycosis, or stubborn nail fungus, should consider this test. It's particularly useful if your infection isn't improving as expected, if you're on other medications that could interact with itraconazole, or if you have liver or absorption concerns that might affect how the drug works in your system.

What symptoms indicate I may need this test?

If your fungal infection symptoms (like persistent cough, skin lesions, or thickened nails) aren't improving after weeks of treatment, that can be a sign your drug levels are too low. On the other hand, new symptoms like stomach pain, yellowing skin, swelling, or vision changes while on itraconazole could signal levels are too high and worth checking right away.

What does a high itraconazole level mean?

A high level means more of the drug is in your bloodstream than expected for your dose, which raises the risk of side effects like liver strain, heart rhythm changes, or stomach upset. This can happen if you're taking a higher dose than needed, if another medication is slowing down how your body clears itraconazole, or if your liver isn't processing it as quickly as usual. Cutting back on dose timing and checking for drug interactions are good first steps, and unusual symptoms like severe nausea or jaundice warrant seeking care promptly.

What does a low itraconazole level mean?

A low level suggests the drug isn't being absorbed well enough to fight the infection effectively, which can happen if it's taken on an empty stomach, with antacids, or without enough stomach acid. This means your infection may not clear as expected even though you're taking the medication as prescribed. Taking your dose with food or a soda, spacing it away from acid-reducing medications, and retesting after adjusting your routine can help confirm the fix worked.

How often should I retest?

Retesting is commonly done a few days to a couple of weeks after starting or adjusting your dose to confirm you've reached a stable, effective level. After that, periodic checks every few weeks to months are reasonable during long courses of treatment, especially if your infection or symptoms change. Tracking each result over time helps you and see whether your levels are staying consistent.

Getting your blood test with us is easy, private & backed by the power of science.Long story short: In the test options, use the filters or search box to narrow your choices and find the test you want. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy! If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

How do I know which test to get?

In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option. Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.

When will my lab results be available?

Most test results will be available within 1–3 business days. Once they're ready, we'll send an email and text message to let you know. After your blood draw, just hang tight and don't worry – we'll keep you updated and in the loop! If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com, and we'll gladly help you.

Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?

Absolutely! We totally understand that errors can happen. No worries, we're here to help you. Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you. There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out. Our lab requires an address to be listed to generate an order.

Do you accept health insurance?

Only HSA & FSA is accepted. Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts. This policy applies to all insurance companies, including federal health insurance programs like Medicare. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

Can I cancel my order?

Yes. We get it – sometimes your needs change. As long as your samples haven’t been collected yet, we’re happy to help you cancel your order. If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com. You can read more about our cancellation policy here.

How can I find a lab location near me?

During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp). Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

Itraconazole Level Test - Antifungal Drug Monitoring

Getting your blood test with us is easy, private & backed by the power of science.

Long story short:

In the test options, use the filters or search box to narrow your choices and find the test you want.
If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!

754-799-7833

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