Tetryzoline, also known as tetrahydrozoline, is a derivative of imidazoline with central and peripheral alpha (?)-adrenergic properties.[A231769] Available since the 1950s, tetryzoline is a selective ?₁-receptor agonist [A231774] that is used as a…

Zinc sulfate is the inorganic compound with the formula ZnSO4 and historically known as "white vitriol". It is on the World Health Organization's List of Essential Medicines, a list of the most important medication needed in a basic health system.

Zinc sulfate is a common zinc supplement in parenteral nutrition.[A216916,L12888]