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Qinlock Side Effects

Generic name: ripretinib

Medically reviewed by Last updated on Jun 6, 2022.

Note: This document contains side effect information about ripretinib. Some of the dosage forms listed on this page may not apply to the brand name Qinlock.

For the Consumer

Applies to ripretinib: oral tablet

Side effects requiring immediate medical attention

Along with its needed effects, ripretinib (the active ingredient contained in Qinlock) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking ripretinib:

More common

  • Blistering, peeling, loosening of the skin
  • bloating or swelling of the face, arms, hands, lower legs, or feet
  • blurred vision
  • constipation
  • diarrhea
  • difficult or labored breathing
  • dizziness
  • headache
  • nausea or vomiting
  • nervousness
  • pounding in the ears
  • rash, redness, swelling, pain, or ulceration of the skin
  • scaling of the skin on the hands and feet
  • slow or fast heartbeat
  • stomach pain
  • tightness in the chest
  • tingling of the hands or feet
  • unusual weight gain or loss

Less common

  • Change in size, shape, or color of existing mole
  • chest pain or discomfort
  • decreased urine output
  • dilated neck veins
  • irregular breathing
  • irregular heartbeat
  • mole that leaks fluid or bleeds
  • new mole
  • pale skin
  • troubled breathing with exertion
  • unusual bleeding or bruising
  • unusual tiredness or weakness

Side effects not requiring immediate medical attention

Some side effects of ripretinib may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

  • Difficulty in moving
  • dry or itching skin
  • hair loss or thinning
  • joint pain or swelling
  • lack or loss of strength
  • loss of appetite
  • muscle pains or stiffness
  • swelling or inflammation of the mouth

For Healthcare Professionals

Applies to ripretinib: oral tablet


Very common (10% or more): Neutropenia (42%), thrombocytopenia (40%), increased activated partial thromboplastin time anemia (24%), increased INR (21%), lymphopenia (13%), febrile neutropenia (11%), decreased neutrophil count (10%)[Ref]


Very common (10% or more): Myalgia (32%), arthralgia (18%), muscle spasms (15%)[Ref]


Very common (10% or more): Anorexia (27%), triglycerides increased (26%), phosphate decreased (26%), triglycerides increased (26%), calcium decreased (23%), weight loss (19%), weight loss (19%), sodium decreased (17%)[Ref]


Very common (10% or more): Blood bilirubin increased (21%), ALT increased (12%)[Ref]


Very common (10% or more): New primary cutaneous malignancies (e.g., cutaneous squamous cell carcinoma (cuSCC), keratoacanthoma, melanoma[Ref]


Very common (10% or more): Dyspnea (13%)[Ref]


Very common (10% or more): Fatigue (42%), CPK increased (21%), peripheral edema (17%), asthenia (13%)[Ref]

Nervous system

Very common (10% or more): Headache (19%)[Ref]


Very common (10% or more): Creatinine increased (16%)[Ref]


Very common (10% or more): Hypertension (14%)

Common (1% to 10%): Cardiac dysfunction (e.g., cardiac failure, acute left ventricular failure, diastolic dysfunction, ventricular hypertrophy)[Ref]


Very common (10% or more): Alopecia (52%), palmar-plantar erythrodysesthesia syndrome (PPES) (21%), dry skin (13%), pruritus (11%)[Ref]


Very common (10% or more): Nausea (39%), abdominal pain (36%), constipation (34%), lipase increased (32%), diarrhea (28%), vomiting (21%), serum amylase increased (13%), stomatitis (11%)[Ref]


1. "Product Information. Qinlock (ripretinib)." Deciphera Pharmaceuticals (2020):

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.