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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.
Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.