A convulsion is the primary symptom of the condition called epilepsy. When a convulsion occurs, too many brain cells suddenly activate, sending out an onslaught of confusing signals to the body and making muscles shake uncontrollably. Epilepsy patients often take anticonvulsant medications to treat this symptom. What is most likely a correct description of anticonvulsants?

A. Anticonvulsants are taken to end the epilepsy condition.
B. Anticonvulsants are taken to prevent or reduce the occurrence of convulsions.
C. Anticonvulsants are taken right before a convulsion to increase the convulsion effects.
D. Anticonvulsants are taken after a convulsion that may bring about another convulsion.