2023年3月15日 · Vasoconstriction is the narrowing (constriction) of blood vessels by small muscles in their walls. When blood vessels constrict, blood flow is slowed or blocked. Vasoconstriction may be slight or severe. It may result from disease, medicines, or psychological conditions. Medicines that cause vasoconstriction include:

Medicines that cause narrowing of the blood vessels (vasoconstriction) Stimulant drugs, such as amphetamines and cocaine; Cocaine use and cigarette smoking can cause severe spasms of the arteries. This causes the heart to work harder.

Hawthorn (Crataegus species) has been used to treat heart disease as far back as the 1st century.By the early 1800s, American doctors were using it to treat circulatory disorders and respiratory illnesses.

Your local poison control center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States.

Battafarano RJ. Esophagus: Management of paraesophageal hernia repair. In: Cameron J, ed. Current Surgical Therapy. 14th ed. Philadelphia, PA: Elsevier; 2023:3-80.

Vacuum erection devices (VEDs) or vacuum constriction devices (VCDs), have been effective for many men with erectile dysfunction (ED), enabling them to get and maintain erections.

Your local poison control center can be reached directly by calling the national toll-free Poison Help hotline (1-800-222-1222) from anywhere in the United States.

5-HTP is made from tryptophan in the body, or can be taken as a supplement. Supplements are made from extracts of the seeds of the African tree Griffonia simplicifolia. 5-HTP can also be found in many multivitamin and herbal preparations.

Learn about High blood pressure, find a doctor, complications, outcomes, recovery and follow-up care for High blood pressure.

Raynaud phenomenon is a condition in which cold temperatures or strong emotions cause blood vessel spasms. This blocks blood flow to the affected regions and causes discolor