 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  treat certain types of blood vessel disease (such as granulomatosis with polyangiitis, microscopic polyangiitis) and can decrease the swelling of the blood vessels. Rituximab is also used to treat a certain skin condition (pemphigus vulgaris). It helps to reduce the number of skin lesions.This monograph is about the following rituximab products: rituximab, rituximab-abbs, rituximab-arrx, and rituximab-pvvr. How to use Rituximab-Abbs 10 Mg/Ml Concentrate,Intravenous Read the Medication Guide provided by your pharmacist before you start using rituximab and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Your doctor should prescribe other medications (such as acetaminophen, an antihistamine, methylprednisolone) for you to take before each treatment to help reduce side effects, such as fever and chills. Carefully follow your doctor's instructions. This medication is given by slow injection into a vein by a health care professional as directed by your doctor. </s>