sentence: Strychnine is one of the most bitter substances known.
sentences_before: Strychnine causes muscular convulsions. It leads to death through asphyxia or exhaustion. The most common source is from the seeds of the 'Strychnos nux vomica' tree.
sentences_after: Its taste is detectable in concentrations as low as 1 ppm.
concept_name: strychnine
headings: Strychnine Poisoning
categories: Poisons Chemical compounds Toxicology