Metoprolol tartrate 5mg; soln for IV inj. Metoprolol tartrate has a preferential effect on β1 adrenoreceptors, chiefly located in cardiac muscle. The mechanism of the antihypertensive effects of ...

It is available in immediate-release forms (under the brand name Lopressor) and extended-release forms (Toprol XL, Kapspargo) ...

Lopressor (metoprolol tartrate), an immediate-release product, disperses quickly throughout the body after administration.