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 Cisapride is a serotonin and cholinergic agonist used as a prokinetic drug, it was withdrawn from the U.S. market because of cardiovascular toxicity.Non-selective agonists.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 Cisapride is a serotonin and cholinergic agonist used as a prokinetic drug, it was withdrawn from the U.S. market because of cardiovascular toxicity.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.
Some of the first tests you may undergo include: 1  Electrocardiogram (ECG). This test records the electrical activity of your heart through electrodes attached to your skin. 2  Blood tests. Your doctor may order blood tests to check for increased levels of certain enzymes normally found in heart muscle. 3  Chest X-ray.