<prompt> Features of strychnine poisoning -Gradual onset of symptomsDuration of rigor mortis is shorterAll muscles not affected at given timeBetween fits muscles are slightly rigid  <response>: Rigor mortis sets in almost immediately after death and passes of early Signs and symptoms appear within 1 to 2 hours.Convulsions affect all muscles at the same time.Between convulsions the muscles are completely relaxed. 