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.
Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Constipation(noun) act of crowding anything into a less compass, or the state of being crowded or pressed together; condensation. 2  Constipation(noun) a state of the bowels in which the evacuations are infrequent and difficult, or the intestines become filled with hardened faeces; costiveness.