It works by relaxing the blood vessels so the heart does not have to pump as hard. Therapy with verapamil should be administered cautiously in such patients, with appropriate monitoring for excessive pharmacologic effects (e.g., abnormal prolongation of PR interval) and the dosage adjusted accordingly as necessary.Moderate Potential Hazard, Moderate plausibility. Do not take a double dose to make up for a missed one.If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online (Keep this medication in the container it came in, tightly closed, and out of reach of children. It also increases the supply of blood and oxygen to the heart and slows electrical activity in the heart to control the heart rate.High blood pressure is a common condition and when not treated, can cause damage to the brain, heart, blood vessels, kidneys and other parts of the body. However, you should not flush this medication down the toilet. Respiratory standstill has been reported for one patient with progressive muscular dystrophy following administration of Isoptin. Store it at room temperature and away from excess heat and moisture (not in the bathroom).It is important to keep all medication out of sight and reach of children as many containers (such as weekly pill minders and those for eye drops, creams, patches, and inhalers) are not child-resistant and young children can open them easily. decreased systemic vascular resistance) without a net impairment of ventricular performance. Your blood pressure should be checked regularly to determine your response to verapamil. In addition to taking medication, making lifestyle changes will also help to control your blood pressure. The extended-release tablets and capsules are usually taken once or twice a day. Applies to: Cardiogenic Shock, HypotensionIn general, calcium channel blockers (CCBs) should not be used in patients with hypotension (systolic pressure < 90 mm Hg) or cardiogenic shock. Do not store the mixture for future use.Your doctor will probably start you on a low dose of verapamil and gradually increase your dose.Verapamil controls arrhythmias, high blood pressure, and angina but does not cure these conditions. CCBs like bepridil, diltiazem and verapamil have a negative effect on AV conduction and the SA node and may exacerbate these conditions.Major Potential Hazard, High plausibility. Select one or more newsletters to continue. Respiratory standstill has been reported for one patient with progressive muscular dystrophy following administration of Isoptin. Verapamil is used to treat high blood pressure and to control angina (chest pain). Rarely, heart failure has developed following the initiation of these CCBs, particularly in patients receiving concomitant beta-blocker therapy.Major Potential Hazard, High plausibility. In addition, the use of some CCBs has been associated with elevations in serum transaminases, both with and without concomitant elevations in alkaline phosphatase and bilirubin. There have been rare reports of obstructive symptoms in patients with known strictures following the ingestion of similar sustained-release products. Ask your pharmacist any questions you have about refilling your prescription.It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. Therapy with the controlled-onset, extended-release formulation of verapamil should be administered cautiously in patients with preexisting severe gastrointestinal narrowing or obstruction, whether pathologic or iatrogenic.Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.The easiest way to lookup drug information, identify pills, check interactions and set up your own personal medication records. Do not chew or crush them. These changes include eating a diet that is low in fat and salt, maintaining a healthy weight, exercising at least 30 minutes most days, not smoking, and using alcohol in moderation.Verapamil comes as a tablet, an extended-release (long-acting) tablet, and an extended-release (long-acting) capsule to take by mouth. The regular tablet is usually taken three to four times a day. Identify these minor or nonsignificant aspirin-acetaminophen oral (Goody's BODY PAIN Oral) interactions with the RxList drug interaction checker tool. Take verapamil at around the same time(s) every day. This is just the empty tablet shell, and this does not mean that you did not get your complete dose of medication.Do not let anyone else take your medication.