Before studying about anticonvulsants, you should review/study the definitions that relate to the topic:
a. Epilepsy. Epilepsy is a chronic convulsive disorder of cerebral function. Epilepsy is characterized by recurrent attacks of motor, sensory, psychic, or autonomic nature. The attacks may involve changes in the state of patient consciousness and are usually sudden in onset and brief.
b. Convulsion. A convulsion is a violent involuntary contraction or series of contractions of the voluntary muscles. There are two types of convulsions.
(1) Clonic convulsions. A clonic convulsion has alternating periods of contraction and relaxation of the voluntary muscles.
(2) Tonic convulsions. A tonic convulsion is a state of sustained contraction of voluntary muscles.
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