What Is Phyrago? Uses, Dosage, and What You Need to Know in 2026

Phyrago is an FDA-approved prescription medication used to treat specific types of leukemia. It is a brand-name formulation of dasatinib — a targeted cancer therapy that has been used in oncology since 2006. Phyrago was developed by Handa Therapeutics and launched commercially in the United States in October 2025 by Cycle Pharmaceuticals.

If you or a loved one has been prescribed Phyrago, this guide covers everything you need to know: what conditions it treats, how it works, available doses, how to take it, and what makes this formulation unique.

What Is Phyrago Used For?

Phyrago is FDA-approved to treat the following conditions:

1. Newly diagnosed adults with Philadelphia chromosome-positive (Ph+) CML in chronic phase. Chronic myeloid leukemia (CML) is a type of blood and bone marrow cancer where the body makes too many abnormal white blood cells. "Chronic phase" means the earliest and most treatable stage.

2. Adults with chronic, accelerated, or blast phase Ph+ CML who are resistant or intolerant to prior therapy including imatinib. This means patients whose leukemia has stopped responding to the first-line drug (imatinib/Gleevec) or who couldn't tolerate it.

3. Adults with Ph+ acute lymphoblastic leukemia (ALL) resistant or intolerant to prior therapy. Ph+ ALL is a fast-growing type of leukemia that affects white blood cells; the Philadelphia chromosome is present in about 25% of adult ALL cases.

4. Pediatric patients 1 year of age and older with Ph+ CML in chronic phase.

5. Pediatric patients 1 year of age and older with newly diagnosed Ph+ ALL in combination with chemotherapy.

What Is the Philadelphia Chromosome?

The Philadelphia chromosome is an abnormality caused by a swap of genetic material between chromosomes 9 and 22. This creates a fusion gene called BCR-ABL1, which produces an overactive protein called BCR-ABL tyrosine kinase. This kinase essentially flips the "on" switch for cancer cell growth and keeps it stuck there permanently. Drugs like Phyrago work by blocking this kinase and turning off the cancer-driving signal.

What Are Phyrago's Available Dosage Forms?

Phyrago is available as oral tablets in six strengths:

• 20 mg

• 50 mg

• 70 mg

• 80 mg

• 100 mg

• 140 mg

How Is Phyrago Dosed?

Adult dosing:

• Chronic phase CML: 100 mg once daily (may be increased to 140 mg if response is inadequate)

• Accelerated/blast phase CML or Ph+ ALL: 140 mg once daily (may be increased to 180 mg)

Pediatric dosing is weight-based and recalculated every 3 months. Tablets must be swallowed whole — do not crush, cut, or chew. Phyrago can be taken with or without food, either in the morning or evening.

What Makes Phyrago Different From Other Dasatinib Products?

Phyrago's key clinical advantage over standard dasatinib (Sprycel and generics) is its formulation. Standard dasatinib requires an acidic stomach environment for proper absorption. When patients take proton pump inhibitors (PPIs) like omeprazole or H2 receptor antagonists (H2RAs) like famotidine — extremely common medications for acid reflux, GERD, or gastroprotection — standard dasatinib's effectiveness drops by 40–60%.

Phyrago's novel formulation maintains full bioavailability even when taken with PPIs and H2RAs. This means patients who need acid suppression don't have to choose between treating their acid condition and getting the full benefit of their leukemia treatment.

Is Phyrago a Chemotherapy?

Phyrago is a targeted therapy, not traditional chemotherapy. Traditional chemotherapy attacks all rapidly dividing cells — cancer and healthy alike — leading to many side effects. Phyrago is a kinase inhibitor that specifically targets the BCR-ABL protein produced by the Philadelphia chromosome. This targeted approach is generally better tolerated than traditional chemotherapy, though Phyrago does have its own significant side effects.

For a deeper dive into how Phyrago works at the molecular level, see How Does Phyrago Work?. Need help finding a pharmacy for your Phyrago prescription? Visit medfinder.com.