Nexavar (Sorafenib) Drug Information: Description, User Reviews, Drug Side Effects, Interactions

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February 10, 2012

Nexavar

Kidney Cancer »

The kidneys

The kidneys are a pair of organs on either side of the spine in the lower abdomen. Each kidney is about the size of a fist. Attached to the top of each kidney is an adrenal gland. A mass of fatty tissue and an outer layer of fibrous tissue (Gerota's fascia) enclose the kidneys and adrenal glands.

The kidneys are part of the urinary tract. They make urine by removing wastes and extra water from the blood. Urine collects in a hollow space (renal pelvis) in the middle of each kidney. It passes from the renal pelvis into the bladder through a tube called a ureter. Urine leaves the body through another tube (the urethra).

The kidneys also make substances that help control blood pressure and the production of red blood cells.

Understanding cancer

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Nexavar

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NEXAVAR
(sorafenib)

DRUG DESCRIPTION

NEXAVAR, a kinase inhibitor, is the tosylate salt of sorafenib.

Sorafenib tosylate has the chemical name 4-(4-{3-[4-Chloro-3-(trifluoromethyl)phenyl]ureido}phenoxy)N2methylpyridine-2-carboxamide 4-methylbenzenesulfonate and its structural formula is:

NEXAVAR (sorafenib) Structural Formula Illustration

Sorafenib tosylate is a white to yellowish or brownish solid with a molecular formula of C₂₁H₁₆ClF₃N₄O₃ x C₇H₈O₃S and a molecular weight of 637.0 g/mole. Sorafenib tosylate is practically insoluble in aqueous media, slightly soluble in ethanol and soluble in PEG 400.

Each red, round NEXAVAR film-coated tablet contains sorafenib tosylate (274 mg) equivalent to 200 mg of sorafenib and the following inactive ingredients: croscarmellose sodium, microcrystalline cellulose, hypromellose, sodium lauryl sulphate, magnesium stearate, polyethylene glycol, titanium dioxide and ferric oxide red.

What are the possible side effects of sorafenib (Nexavar)?

Stop using sorafenib and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these serious side effects:

rash, blisters, oozing, or severe pain in the palms of your hands or the soles of your feet;
increased blood pressure (severe headache, blurred vision, trouble concentrating, chest pain, numbness, seizure);
easy bruising, unusual bleeding;

Read All Potential Side Effects and See Pictures of Nexavar »

What are the precautions when taking sorafenib (Nexavar)?

Before taking sorafenib, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: bleeding problems, heart problems (e.g., heart attack, angina), high blood pressure, liver problems.

Do not have immunizations/vaccinations without the consent of your doctor, and avoid contact with people who have recently received oral polio vaccine or flu vaccine inhaled through the nose.

To lower the chance of getting cut, bruised or injured, use caution with sharp objects like safety razors and nail cutters,...

Read All Potential Precautions of Nexavar »

Last reviewed on RxList: 10/31/2011
This monograph has been modified to include the generic and brand name in many instances.