Fever, hyperventilation, diarrhea and severe infections can also cause tachycardia, primarily due to increase in metabolic demands.
Reported side effects include anxiety, restlessness, muscle tension, jaw tightness, pupil dilation, tachycardia, headaches, nausea, and vomiting, among other effects that might commonly be attributed to LSD, psilocybin, DMT and MDMA, such as delusions and hallucinations.
"Liebermeister's rule" states that in adult febrile tachycardia, pulse-beats increase at a rate of approximately eight beats per minute to each degree Celsius.
It is also indicated as a treatment of refractory tachycardia associated with Wolff–Parkinson–White syndrome.
François Dessertenne is a French physician who first described the special type of ventricular tachycardia in 1966 known as Torsades de pointes.
In the 2006 film Casino Royale, the protagonist, James Bond, suffers ventricular tachycardia from intoxication of digitalis and goes into cardiac arrest.