Definition of fatalism for English Language Learners : the belief that what will happen has already been decided and cannot be changed Learn More about fatalism
The receptors most relevant to the pharmacology of vasopressors are adrenoceptors. Adrenoceptors, sometimes referred to as adrenergic receptors, interact with norepinephrine, epinephrine, and chemically similar drugs (called adrenomimetic, adrenergic, or sympathomimetic agents).
Vasopressors are compounds that cause the blood vessels to constrict, which, in turn, causes blood pressure to rise. A number of compounds can have this effect, ranging from pharmaceuticals that are used on patients in certain situations to recreational drugs that have a vasoconstrictive effect.