No. Marijuana is one of the few drugs that isnt. Type in "vasoconstrictor" into wikipedia to look up the ones that are. Marijuana actually does the opposite and increase blood flow and expand the arteries.
Indeed.
Epinephrine is mainly a vasoconstrictor. It acts on alpha-adrenergic receptors in blood vessels, causing constriction and increasing blood pressure. However, it can also dilate blood vessels in certain tissues, like skeletal muscle, through its actions on beta-adrenergic receptors.
vasoconstrictor
Serotonin
Serotonin
Yes it can.
Phenylephrine is a powerful vasoconstrictor. It is used as a nasal decongestant and cardiotonic agent. Phenylephrine is a postsynaptic α1-receptor agonist with little effect on β-receptors of the heart.
No, oxygen (O2) is not a vasoconstrictor. In fact, oxygen is crucial for vasodilation, which helps to increase blood flow through the blood vessels. Oxygen plays a vital role in maintaining healthy vascular function.
Nicotine is a central nervous system stimulant and vasoconstrictor.
reduces risk of toxic reaction, and helps control bleeding
Smoking constricts the bloodvessels causing poor circulation and a higher workload on the heart to get blood to all the organs and extremities of the body. It increases chances for heart disease, heart attack, stroke, and all cancers.
No, epinephrine is a vasoconstrictor. Commonly given to slow bleeding.