Cycloplegic drugs are generally muscarinic receptor blockers.

Angiotensin II receptor blockers make it hard for the hormone angiotensin to work.

Angiotensin II receptor blockers inhibit a substance that causes blood vessels to narrow (constrict).

Angiotensin II receptor blockers also act directly on the hormones that regulate sodium and water balance.

The receptor blockers are newer, having come on the market in 1995.

Among the others is corynanthine, an alpha-1 adrenergic receptor blocker.

Angiotensin II receptor blockers, in particular, often contain tetrazoles, such as losartan and candesartan.

These two substances served as lead compounds for further optimization of AT receptor blockers.

They often contain a cholinergic synapse and can therefore be shown with the use of a nicotinic receptor blocker.

However, both the isomers are approximately equipotent as alpha receptor blockers.