Toprol-XL is a beta1-selective (cardioselective) adrenoceptor blocking agent, for oral administration, available as extended release tablets. It has been formulated to provide a controlled and predictable release of metoprolol for once-daily administration. The mechanism of the antihypertensive effects of beta-blocking agents is not fully known. However, several possible mechanisms have been proposed: (1) competitive antagonism of catecholamines at peripheral (especially cardiac) adrenergic neuron sites, leading to decreased cardiac output; (2) a central effect leading to reduced sympathetic outflow to the periphery; and (3) suppression of renin activity. Metoprolol blocks the catecholamine-induced increases in heart rate, velocity and extent of myocardial contraction, and in blood pressure, metoprolol reduces the oxygen requirements of the heart at any given level of effort. Tthe precise mechanism for the beneficial effects of beta-blockers in heart failure is not known. Toprol-XL is specifically indicated for: the treatment of hypertension, either alone or in combination with other antihypertensive agents, the long-term treatment of angina pectoris and the treatment of stable, symptomatic (NYHA Class II or III) heart failure of ischemic, hypertensive, or cardiomyopathic origin. After experiencing a combination of 'irregular heartbeats', fatigue and some elevated blood pressure, I was recently tested, and told I was having about 3,000 PACs a day. Otherwise, my Echo and Holtor tests were excellent. My Doctor prescribed taking 12.5mg of metoprolol a day, even though he acknowledges that there is only a moderate chance that it will address and improve the problem. Having heard some of the more extreme cases of the potential side-effects of metoprolol, I was wondering... a.) Am I likely to experience many side-effects at such a small dosage? (I'm assuming 12.5mg 1x a day is considered a low dose). I'm glad that toprol XL helped with your a-fib condition, but I realize PACs are not too enjoyable either. I was glad to read your post concerning the Toprol XL, I haven't had any nightmares with mine, been on it for approx 6-7 yrs. b.) What is the likelihood that metoprolol can be helpful for the aforementioned symptoms, especially in such a low dose? I was prescribed Toprol XL at the same dosage and had horrible nightmares and depression. However, it prevented me from having any more episodes of afib which I had as a result of pregnancy. It sounds like you were prescribed toprol XL to treat the a-fib, then developed PACs *after* starting the medication. I'm an otherwise healthy, athletic 37 year old male, which makes this sudden onset of these PACs and other symptoms all the more disconcerting. I first began with these flippy floppy beats after my mom passed away. I also was detected by the cardio to have WPW, but he said it was better every year he did the EKG. Clonidine ingredients Does viagra affect vision Metformin triglycerides Can i buy clomid from boots How to use Metoprolol Tartrate. See also Warning section. Take this medication by mouth, with or right after a meal, as directed by your doctor, usually 1-3 times a dosage is based on your. Metoprolol tartrate tablets are indicated for the treatment of hypertension. be administered concomitantly, and the lowest possible dose of metoprolol tartrate. A. Am I likely to experience many side-effects at such a small dosage? I'm assuming 12.5mg 1x a day is considered a low dose. b. What is the likelihood that metoprolol can be helpful for the aforementioned symptoms, especially in such a low dose? c. Is 12.5mg minor enough to be able to stop taking fairly easily? • Hypertension • Angina pectoris • Tachyarrhythmias, in particular supraventricular tachycardia • Maintenance treatment after a myocardial infarction • Prophylaxis of migraine Metoprolol is indicated in adults. Metoprolol tartrate tablets should be administered orally. The dose must always be adjusted to the individual requirements of the patient. The following are guidelines: Hypertension The usual dose is 100mg to 200mg daily, given as a single dose in the morning, or in divided doses (morning and evening). Dose increments should be at weekly intervals thereafter according to individual patient responses. If necessary, it may be taken in combination with other antihypertensive drugs. Angina pectoris The usual dose is 100 to 200 mg daily, given in divided doses (morning and evening). Dose increments should be at weekly intervals thereafter according to individual patient responses. Maximum dose, usually 200mg daily (in divided doses). If necessary, it may be taken in combination with other antianginal drugs. Cardiac arrhythmias The usual dose is 100 to 150 mg per day, in divided doses (in the morning and in the evening). Myocardial infarctions The oral treatment can be initiated once the patient is haemodynamically stable. Metoprolol is a beta blocker used in the management of hypertension and chronic angina pectoris, or chest pain. The medication may be used alone or in conjunction with other medications. Because obesity and hypertension often occur concomitantly, metoprolol may be part of the treatment regimen. The "International Journal of Obesity" published a study about the effects of a low dose of metoprolol in conjunction with the appetite suppressant medication sibutramine in its Jan. Sibutramine possesses potential side effects of heart palpitations and hypertension, which can affect patient compliance with taking the medication. The purpose of the study was to determine metoprolol's ability to prevent these side effects. The study's conclusion was that not only did the the low dose of metoprolol diminish the side effects of sibutramine, but it also did not negatively effect the study subjects' metabolism. Sheps states that the weight gain usually happens during the first week of metoprolol therapy. Metoprolol lowest dosage Metoprolol Lopressor, Toprol XL Side Effects & Dosage, METOPROLOL TARTRATE - DailyMed Xanax dosage for sleepWill doxycycline treat trichomoniasisPrednisone heart failureMetoprolol dosage rangePurchase retin a canada Because beta 1 selectivity is not absolute use the lowest possible dose of metoprolol tartrate and consider administering metoprolol tartrate in smaller doses three times daily, instead of larger doses two times daily, to avoid the higher plasma levels associated with the longer dosing interval see DOSAGE AND ADMINISTRATION. DailyMed - METOPROLOL TARTRATE- metoprolol tartrate tablet.. PACs and 12.5mg Metoprolol - Heart Disease - MedHelp. NEW ZEALAND DATA SHEET 1. NAME OF MEDICINE. - Medsafe. This lowest dosage should be taken for at least 4 days until treatment is discontinued completely. Throughout this period, above all patients with ischaemic heart. Dosed once daily, but low doses e.g. 100 mg given once daily may not control blood pressure for a full 24 hours.1. Metoprolol succinate is dosed once daily. This drug is more popular than comparable drugs. It is available in brand and generic versions. Generic metoprolol is covered by most Medicare and insurance plans, but some pharmacy coupons or cash prices may be lower. The lowest GoodRx price for the most common version of metoprolol is around $6.32, 64% off the average retail price of $17.80.