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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.
Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.