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VELCADE® (bortezomib) for Injection is an antineoplastic agent available for intravenous injection or subcutaneous use. Each single use vial contains 3.5 mg of bortezomib as a sterile lyophilized powder. Inactive ingredient: 35 mg mannitol, USP.
Bortezomib is a modified dipeptidyl boronic acid. The product is provided as a mannitol boronic ester which, in reconstituted form, consists of the mannitol ester in equilibrium with its hydrolysis product, the monomeric boronic acid. The drug substance exists in its cyclic anhydride form as a trimeric boroxine.
The chemical name for bortezomib, the monomeric boronic acid, is [(1R)-3-methyl-1-[[(2S)-1-oxo-3-phenyl-2[(pyrazinylcarbonyl) amino]propyl]amino]butyl] boronic acid.
Bortezomib has the following chemical structure:
The molecular weight is 384.24. The molecular formula is C19H25BN4O4. The solubility of bortezomib, as the monomeric boronic acid, in water is 3.3 to 3.8 mg/mL in a pH range of 2 to 6.5.
What are the possible side effects of bortezomib (Velcade)?
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 a serious side effect such as:
- new or worsening nerve problems such as numbness, burning, pain, weakness, or tingly feeling;
- feeling like you might pass out;
- dry cough and trouble breathing;
- severe headache, vision problems, confusion, and/or seizure (convulsions);
- black, bloody, or tarry stools, vomit that looks like blood or coffee...
What are the precautions when taking bortezomib (Velcade)?
Before using this medication, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients (such as boron, mannitol), 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: nerve sensation problems (e.g., peripheral neuropathy), heart disease, low blood pressure, loss of body fluids (dehydration), diabetes, liver disease, severe kidney disease, certain viral infection (herpes, shingles).
To minimize dizziness and lightheadedness, get up slowly when rising from a seated or lying position.
This drug may make you dizzy or cause vision changes. Do not...
Last reviewed on RxList: 11/6/2012
This monograph has been modified to include the generic and brand name in many instances.
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