T46: Poisoning by agents primarily affecting the cardiovascular system

T46.5: Poisoning: Other antihypertensive drugs, not elsewhere classified

A drug can cause poisoning if, for example, too much of it is taken. The drug may also be administered or taken by mistake.

Some medications used to treat high blood pressure also have other areas of application. Poisoning with blood pressure medication can cause blood pressure to become very low, for example. It can make a person dizzy or give them headache.