Specialty Drug


Caprelsa is part of the Kinase Inhibitors class and treats Thyroid Cancer. Kinase inhibitors are used to treat cancers such as leukemia, breast cancer, melanoma, lung cancer, and renal cancer. They are also used in the treatment of rheumatoid arthritis and to prevent organ transplant rejection. They work by stopping cancer cell growth and preventing the spread of the cells. Caprelsa is only available as a brand name drug. Compare kinase inhibitors.

Availability: Caprelsa is only available at certified specialty pharmacies. Learn More


Vandetanib Side Effects

Common and Rare Side Effects

Along with its needed effects, a medicine 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:

More common

Abdominal or stomach cramps or pain

bleeding gums

blurred vision

body aches or pain

chest pain

cloudy urine




coughing up blood

difficulty with breathing or swallowing


ear congestion


fever or chills


increased menstrual flow or vaginal bleeding

irregular heartbeat recurrent

loss of voice

muscle cramps in the hands, arms, feet, legs, or face



numbness and tingling around the mouth, fingertips, or feet


pounding in the ears

prolonged bleeding from cuts

red or black, tarry stools

red or dark brown urine

slow or fast heartbeat


sore throat

stuffy or runny nose


tightness in the chest


troubled breathing

unusual tiredness or weakness (severe)

watery or bloody diarrhea

Less common

Blue lips, fingernails, or skin

chest pain or discomfort

dilated neck veins

extreme fatigue

foreign substance into the lungs

infection from breathing

irregular breathing

irregular heartbeat

irregular, fast or slow, or shallow breathing


no breathing

swelling of the face, fingers, feet, or lower legs

weight gain




darkened urine

decreased urine output


loss of appetite


pains in the stomach, side, or abdomen, possibly radiating to the back

yellow eyes or skin

Some side effects 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

Acid or sour stomach


blemishes on the skin


blistering, crusting, irritation, itching, or reddening of the skin

change in taste

cracked, dry, or scaly skin

cracks in the skin

decreased appetite

decreased vision

decreased weight


discoloration of the fingernails or toenails

dry mouth

dry skin

hair loss or thinning of the hair


increased sensitivity of the skin to sunlight

itching skin

lack or loss of strength

loosening of the fingernails

loss of heat from the body

loss of taste

muscle aches or spasms


rash with flat lesions or small raised lesions on the skin

red, swollen skin

redness or other discoloration of the skin

redness or soreness around the fingernails

severe sunburn

stomach discomfort or upset


trouble sleeping

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

GoodRx is not sponsored by or affiliated with any of the pharmacies identified in its price comparisons. All trademarks, brands, logos and copyright images are property of their respective owners and rights holders and are used solely to represent the products of these rights holders. This information is for informational purposes only and is not meant to be a substitute for professional medical advice, diagnosis or treatment. GoodRx is not offering advice, recommending or endorsing any specific prescription drug, pharmacy or other information on the site. GoodRx provides no warranty for any of the pricing data or other information. Please seek medical advice before starting, changing or terminating any medical treatment.
In all states except Tennessee, GoodRx is considered a marketer of prescription discount cards, and is not required to register as a discount card provider. In Tennessee, GoodRx is registered as a Prescription Drug Discount Plan Operator.
Safe Pharmacy
The information contained in the Truven Health Micromedex products as delivered by GoodRx is intended as an educational aid only. It is not intended as medical advice for individual conditions or treatment. It is not a substitute for a medical exam, nor does it replace the need for services provided by medical professionals. Talk to your doctor, nurse or pharmacist before taking any prescription or over the counter drugs (including any herbal medicines or supplements) or following any treatment or regimen. Only your doctor, nurse, or pharmacist can provide you with advice on what is safe and effective for you.
The use of the Truven Health products is at your sole risk. These products are provided "AS IS" and "as available" for use, without warranties of any kind, either express or implied. Truven Health and GoodRx make no representation or warranty as to the accuracy, reliability, timeliness, usefulness or completeness of any of the information contained in the products. Additionally, TRUVEN HEALTH MAKES NO REPRESENTATION OR WARRANTIES AS TO THE OPINIONS OR OTHER SERVICE OR DATA YOU MAY ACCESS, DOWNLOAD OR USE AS A RESULT OF USE OF THE THOMSON REUTERS HEALTHCARE PRODUCTS. ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE OR USE ARE HEREBY EXCLUDED. Truven Health does not assume any responsibility or risk for your use of the Truven Health products.