Seizure
A seizure or convulsion was a condition that rendered a person unconscious and caused muscle spasms.

In 2266, a teenage boy suffering from the effects of the life prolongation project had a seizure as the landing party observed him. ()

In 2364, Kunivas went into convulsions just prior to his death. () 

Also that year, a worried Jenice Manheim reported to the  that her husband Paul was having convulsions. ()

In 2366, Doctor Beverly Crusher told Tam Elbrun that his brain activity suggested he was coming out of a fugue or a seizure. ()

In 2370, Dr. Julian Bashir discussed Elim Garak's odd behavior at lunch with Jadzia Dax, saying he thought the Cardassian was going to have a seizure. () 

In 2377, Harry Kim faked a seizure to see The Doctor in Seven of Nine's body while she was imprisoned by the Lokirrim. ()

Seizure-Inducing Conditions and Devices

 Amanita muscaria ()
 Andronesian encephalitis ()
 Cortical fluctuation ()
 Forrester-Trent Syndrome ()
 life prolongation project ()
 Light ()
 Neurolytic restraint ()
 Rage virus ()

Known Anti-Convulsants
 Hyperzine ()
 Tricordrazine ()

External link 
 

de: Krampf
Medical conditions