Organisms that can capture energy from sunlight or chemicals and use that energy to produce food are called autotrophs, or primary producers. The process in which autotrophs capture light energy and use it to convert carbon dioxide and water into oxygen and sugars is called photosynthesis.rganisms that can capture energy from sunlight or chemicals and use that energy to produce food are called autotrophs, or primary producers. The process in which autotrophs capture light energy and use it to convert carbon dioxide and water into oxygen and sugars is called photosynthesis.
What to Expect With Rituxan. How Rituxan is given. RituxanÂ® (rituximab) is given as an intravenous (IV) infusion once weekly for 4 weeks. An IV infusion is given to you through a needle that's placed in a vein. Infusion reactions with Rituxan may include fever, chills and shakes, itching, and coughing.
Chemotherapy is used to treat patients with autoimmune diseases who have severe symptoms and who have failed to respond to initial, more conservative therapies. The chemotherapy drug methotrexate controls symptoms of rheumatoid arthritis. Rituxan is another type of chemotherapy drug called a monoclonal antibody. According to the Rituxan website, the drug treats lymphoma and leukemia, and targets only cancer cells. When used to treat rheumatoid arthritis, Rituxan slows joint damage and may provide symptom relief for up to six months.