This drug is used generally as somnorific. 5-HT4 agonists. Cisapride is a serotonin and cholinergic agonist used as a prokinetic drug, it was withdrawn from the U.S. market because of cardiovascular toxicity.Non-selective agonists. Ergotamine activates a more than one subtype of 5-HT receptor, it binds to 5-HT1A, 5-HT1D, 5-HT1B, D2 and norepinephrine receptors.his drug is used generally as somnorific. 5-HT4 agonists. Cisapride is a serotonin and cholinergic agonist used as a prokinetic drug, it was withdrawn from the U.S. market because of cardiovascular toxicity.
Lower extremity venography is a test used to see the veins in the leg. X-rays are a form of electromagnetic radiation like light, but of higher energy, so they can go through the body to form an image on film.
Your doctor may suspect that your arteries have narrowed and will check the pulses in arteries in your legs and feet. Your doctor will listen to the blood flow with a stethoscope or a small Doppler device.uring this test, cuffs like the ones used to measure blood pressure in your arm are wrapped around your arm and your leg on the same side of your body. Four cuffs are wrapped around your leg--1 at the upper thigh, 1 at the lower thigh, 1 at the upper calf and 1 at the ankle.