Side Effects and Common Adverse Reactions of Pirtobrutinib

Release date: 2026-03-25 15:53:34     Recommended: 6

During treatment with pirtobrutinib, some side effects may occur, and these effects vary from person to person. Before receiving pirtobrutinib treatment, patients need to thoroughly understand the related side effects of the drug.

Side effects of pirtobrutinib requiring immediate medical attention

During the use of pirtobrutinib, some side effects that may require immediate medical attention can occur. If any of the following symptoms appear, seek medical attention immediately, regardless of severity:

Common side effects of pirtobrutinib

Black, tarry stools; bleeding gums; blood in urine or stool; body pain; chest pain or tightness; cough; ear congestion; fever or chills; loss of voice; pale skin; tiny red spots on the skin; sneezing; sore throat; stuffy or runny nose; swelling; difficulty breathing; unusual bleeding or bruising; unusual tiredness or weakness.

Less common side effects of pirtobrutinib

During the use of pirtobrutinib, symptoms such as confusion; dizziness; fainting; fast or irregular heartbeat; vertigo; pain in the lower back or side; painful or difficult urination; persistent non-healing sores; pinkish growths; red patches or irritated areas; shiny lumps; mouth ulcers, sores, or white patches; white, yellow, or waxy scar-like areas may occur.

Mild side effects of pirtobrutinib

Patients may also experience some mild side effects during treatment with pirtobrutinib. These side effects are usually temporary and do not require special treatment. If symptoms persist, consult a doctor immediately:

Burning, numbness, tingling, or pain; constipation; cough; diarrhea; difficulty moving; joint pain; large, flat, blue or purple patches on the skin; muscle or bone pain; muscle stiffness; nausea; joint pain, swelling, or redness; stomach pain; unsteadiness or clumsiness; weakness in the arms, hands, legs, or feet.

Side effects of pirtobrutinib for medical professionals’ reference

Common side effects of pirtobrutinib

(1) Skin conditions

Pirtobrutinib may cause rash.

(2) Gastrointestinal reactions

Diarrhea, constipation, abdominal pain, and nausea are also common adverse reactions to pirtobrutinib.

(3) Blood

Bleeding is also a common adverse reaction to pirtobrutinib.

(4) Musculoskeletal

Pirtobrutinib may cause musculoskeletal pain, arthritis, or joint pain.

(5) Nervous system

Peripheral neuropathy, dizziness, memory changes, headache.

(6) Eye problems

Pirtobrutinib may cause vision changes.

(7) Tumors

Pirtobrutinib may cause tumor lysis syndrome.

(8) Respiratory-related

Pirtobrutinib may cause difficulty breathing, cough, and pleural effusion.

Other side effects of pirtobrutinib

(1) Common side effects

Fatigue, edema, fever, pneumonia, upper respiratory tract infection, bruising, decreased hemoglobin, reduced platelet count, reduced neutrophil count, reduced lymphocyte count, elevated creatinine, decreased calcium, elevated aspartate aminotransferase (AST), elevated alanine aminotransferase (ALT), decreased potassium, increased potassium, decreased sodium, increased lipase, increased alkaline phosphatase, sepsis.

(2) Less common side effects

Pirtobrutinib may cause urinary tract infection and herpes virus infection.