Before receiving Rituxan, tell your doctor if you: 1  Have had a severe infusion reaction to Rituxan in the past. 2  Have a history of other medical conditions including: Heart problems. Irregular heartbeat. 3  Have had an infection, currently have an infection, or have a weakened immune system.
Usurpation. The illegal encroachment or assumption of the use of authority, power, or property properly belonging to another; the interruption or disturbance of an individual in his or her right or possession.
USURPATION, torts. The unlawful assumption of the use of property which belongs to another; an interruption or the disturbing a man in his right and possession. Toml. Law Dict. h.t. 2.