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QT PROLONGATION, TORSADES DE POINTES, AND SUDDEN DEATH
CAPRELSA can prolong the QT interval. Tors ades de pointes and s udden death have occurred in patients receiving CAPRELSA. Do not us e CAPRELSA in patients with hypocalcemia, hypokalemia, hypomagnes emia, or long QT s yndrome. Correct hypocalcemia, hypokalemia and/or hypomagnes emia prior to CAPRELSA adminis tration. Monitor electrolytes periodically. Avoid drugs known to prolong the QT interval. Only pres cribers and pharmacies certified with the res tricted dis tribution program are able to pres cribe and dis pens e CAPRELSA [see WARNINGS AND PRECAUTIONS].
Vandetanib has the chemical name N-(4-bromo-2-fluorophenyl)-6-methoxy-7-[(1-methylpiperidin-4-yl) methoxy]quinazolin-4-amine.
The structural and molecular formulas are:
Vandetanib has a molecular weight of 475.36. Vandetanib exhibits pH-dependent solubility, with increased solubility at lower pH. Vandetanib is practically insoluble in water with a value of 0.008 mg/mL at 25°C (77°F).
CAPRELSA tablets for daily oral administration are available in two dosage strengths containing either 100 mg or 300 mg of vandetanib. The tablet cores contain the following inactive ingredients: calcium hydrogen phosphate dihydrate, microcrystalline cellulose, crospovidone, povidone, and magnesium stearate. The tablet film-coat contains the following inactive ingredients: hypromellose 2910, macrogol 300, and titanium dioxide E171.
Last reviewed on RxList: 3/6/2017
This monograph has been modified to include the generic and brand name in many instances.
Additional Caprelsa Information
- Caprelsa Drug Interactions Center: vandetanib oral
- Caprelsa Side Effects Center
- Caprelsa FDA Approved Prescribing Information including Dosage
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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