{"id":53437,"date":"2022-08-29T14:48:09","date_gmt":"2022-08-29T18:48:09","guid":{"rendered":"https:\/\/www.singlecare.com\/blog\/?p=53437"},"modified":"2026-03-11T16:14:54","modified_gmt":"2026-03-11T20:14:54","slug":"diltiazem-side-effects","status":"publish","type":"post","link":"https:\/\/www.singlecare.com\/blog\/diltiazem-side-effects\/","title":{"rendered":"How does diltiazem make you feel?"},"content":{"rendered":"<p><a href=\"https:\/\/www.singlecare.com\/prescription\/diltiazem-hcl\"><span style=\"font-weight: 400;\">Diltiazem<\/span><\/a><span style=\"font-weight: 400;\"> is a generic prescription tablet or capsule used to treat <\/span><a href=\"https:\/\/www.singlecare.com\/conditions\/blood-pressure-treatment-and-medications\"><span style=\"font-weight: 400;\">high blood pressure<\/span><\/a><span style=\"font-weight: 400;\"> and prevent chest pain (angina). Diltiazem injections are given to people during medical emergencies involving serious heart rate abnormalities like atrial fibrillation or paroxysmal supraventricular tachycardia. Some people are prescribed diltiazem under one of its brand names: <\/span><a href=\"https:\/\/www.singlecare.com\/prescription\/cardizem\"><span style=\"font-weight: 400;\">Cardizem<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/www.singlecare.com\/prescription\/cardizem-cd\"><span style=\"font-weight: 400;\">Cardizem CD<\/span><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/www.singlecare.com\/prescription\/cardizem-la\"><span style=\"font-weight: 400;\">Cardizem LA<\/span><\/a><span style=\"font-weight: 400;\">, or <\/span><a href=\"https:\/\/www.singlecare.com\/prescription\/cartia-xt\"><span style=\"font-weight: 400;\">Cartia XT<\/span><\/a><span style=\"font-weight: 400;\">. As a <\/span><a href=\"https:\/\/www.singlecare.com\/drug-classes\/calcium-channel-blockers\"><span style=\"font-weight: 400;\">calcium channel blocker<\/span><\/a><span style=\"font-weight: 400;\">, diltiazem partly blocks the ability of blood vessels and the heart to contract. This widens blood vessels, slows the heart rate, and reduces the force of each heartbeat. The combined effect lowers blood pressure. However, diltiazem can also have unwanted effects, including adverse effects on the heart. Use this guide to better understand what to expect when taking diltiazem.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\t\t<div id=\"coupon-cta\" class=\"coupon-cta master-template\">\n\t\t\t<p id=\"headline\">Save up to 80% on Diltiazem with SingleCare<\/p>\n\t\t\t<p id=\"subheadline\">Different pharmacies offer different prices for the same medication. 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However, low blood pressure is the most common side effect of a <\/span><a href=\"https:\/\/dailymed.nlm.nih.gov\/dailymed\/drugInfo.cfm?setid=734beeef-3968-4137-af2c-276e8a9317df\"><span style=\"font-weight: 400;\">diltiazem injection<\/span><\/a><span style=\"font-weight: 400;\">. In order of incidence, <\/span><span style=\"font-weight: 400;\">the most common side effects<\/span><span style=\"font-weight: 400;\"> of diltiazem are:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Swelling of the extremities (peripheral edema)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Headache<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dizziness<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fatigue<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Slow heart rate<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Flushing<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Heart block<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Low blood pressure<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Acid indigestion<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Constipation<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Nausea<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Liver problems<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Skin rash<\/span><\/li>\n<\/ul>\n<p><a href=\"https:\/\/dailymed.nlm.nih.gov\/dailymed\/drugInfo.cfm?setid=69ca7cae-fdf3-413a-900b-95cf6e9e7b63\"><span style=\"font-weight: 400;\">In clinical trials<\/span><\/a><span style=\"font-weight: 400;\">, people taking immediate-release diltiazem had a lower incidence of most of these side effects in comparison to people taking <a href=\"https:\/\/www.singlecare.com\/prescription\/diltiazem-hcl-er\/what-is\">extended-release diltiazem<\/a>.\u00a0<\/span><\/p>\n<h3 id=\"fatigue-is-more-common-with-diltiazem-er\"><span style=\"font-weight: 400;\">Fatigue is more common with diltiazem ER<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Asthenia is a common side effect of diltiazem. \u201cAsthenia\u201d is like fatigue, except that it\u2019s a feeling of being worn out without actually working hard or exercising. It\u2019s more commonly experienced in people taking extended-release diltiazem &#8211; about 3 in every 100 people taking diltiazem ER. The incidence drops to 1 in 100 in people taking immediate-release diltiazem. Weakness, tiredness, and fatigue are not necessarily health-threatening side effects. However, if diltiazem-induced fatigue is interfering with daily life, talk to the prescribing healthcare provider about treatment options.<\/span><\/p>\n<p><strong><a class=\"cta-button\" href=\"https:\/\/www.singlecare.com\/prescription\/diltiazem-hcl-er-coated-beads\">Diltiazem ER coated beads coupons<\/a><\/strong><\/p>\n<h2 id=\"serious-side-effects-of-diltiazem\"><span style=\"font-weight: 400;\">Serious side effects of diltiazem<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The most serious side effects of <\/span><a href=\"https:\/\/www.singlecare.com\/prescription\/diltiazem-hcl\/what-is\"><span style=\"font-weight: 400;\">diltiazem<\/span><\/a><span style=\"font-weight: 400;\"> include:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Slowed heart rate (bradycardia)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Heart rhythm problems (arrhythmias)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Severe low blood pressure<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Heart failure<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Severe allergic reactions<\/span><\/li>\n<\/ul>\n<h2 id=\"does-diltiazem-cause-weight-gain\"><span style=\"font-weight: 400;\">Does diltiazem cause weight gain?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Weight gain is not a side effect of diltiazem. However, fluid retention is. Excess water can increase weight, but it\u2019s only water weight. It will go away when the drug is stopped or the edema is treated. However, a sudden gain in weight can be a sign of fluid retention due to <\/span><a href=\"https:\/\/www.singlecare.com\/conditions\/congestive-heart-failure-treatment-and-medications\"><span style=\"font-weight: 400;\">congestive heart failure<\/span><\/a><span style=\"font-weight: 400;\">, so contact the prescriber or other healthcare professional if there\u2019s a big gain in weight when taking diltiazem.<\/span><\/p>\n<h2 id=\"hypotension-may-occur-after-diltiazem-injections\"><span style=\"font-weight: 400;\">Hypotension may occur after diltiazem injections<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Low blood pressure is a very uncommon side effect in people taking diltiazem orally. However, low blood pressure is the most common side effect in people receiving diltiazem IV injections, occurring in 7% of patients. Nearly half will show symptoms. Unlike oral formats, however, diltiazem injections are used in critical situations involving serious heart rhythm problems. In these cases, patients are in an emergency or intensive care situation, so doctors and other healthcare professionals are monitoring blood pressure and will intervene if blood pressure drops. For people taking oral diltiazem, if low blood pressure is a problem, talk to the prescriber. The doses may need to be changed.\u00a0<\/span><\/p>\n<h2 id=\"some-hair-loss-has-been-reported\"><span style=\"font-weight: 400;\">Some hair loss has been reported<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Hair loss has been reported in people taking diltiazem, but <\/span><a href=\"https:\/\/www.pdr.net\/drug-summary\/Cardizem-diltiazem-hydrochloride-2077\"><span style=\"font-weight: 400;\">the incidence<\/span><\/a><span style=\"font-weight: 400;\"> may be close to zero or as high as 2%. The nature of the hair loss has not been defined. If hair loss or thinning occurs when taking diltiazem, it may be caused by the drug or it may be an allergic or skin reaction to the drug. Contact the prescriber, particularly if there are other symptoms of a skin reaction, including rash or hives.<\/span><\/p>\n<h2 id=\"side-effects-of-diltiazem-in-elderly-people\"><span style=\"font-weight: 400;\">Side effects of diltiazem in elderly people<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Diltiazem may not be appropriate for older adults, particularly those with heart failure. There are several potential problems: increased risk for side effects, increased risk for falls and injuries, fluid retention, heart problems, and problems with mental function. In general, healthcare professionals will start older adults at a low dose.<\/span><\/p>\n<h2 id=\"how-soon-do-diltiazem-side-effects-start\"><span style=\"font-weight: 400;\">How soon do diltiazem side effects start?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Diltiazem begins to work with the first dose. A dose of immediate-release diltiazem starts working in 30 to 60 minutes, while extended-release diltiazem begins working in about two to three hours. Many mild or moderate side effects could begin by then, including headache, dizziness, and nausea.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Some serious side effects, such as heart rhythm problems, could also occur early in treatment.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Other side effects, such as fatigue and edema, may require a few days or weeks of treatment before becoming a problem.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Some allergic reactions, such as severe skin reactions, could also take some time before symptoms appear.<\/span><\/p>\n<h2 id=\"how-long-do-diltiazem-side-effects-last\"><span style=\"font-weight: 400;\">How long do diltiazem side effects last?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Diltiazem tablets and capsules are intended for long-term use. Some side effects will improve over time. However, once the drug is stopped, side effects will usually resolve. This can take about a day for immediate-release diltiazem and about twice that for extended-release diltiazem. Some side effects, though, may take longer to get better, including severe allergic reactions or heart problems. Some of the worst side effects, such as heart failure, may have lifelong consequences.<\/span><\/p>\n<h2 id=\"what-are-the-long-term-side-effects-of-diltiazem\"><span style=\"font-weight: 400;\">What are the long-term side effects of diltiazem?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">There are potential long-term side effects like edema, headaches, bradycardia, gingival hyperplasia, and more. Some less common long-term side effects may include heart failure, heart block, hepatotoxicity, and photosensitivity.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Determining whether diltiazem is safe and appropriate for long-term use is based on several factors, including the patient\u2019s underlying cardiac function and medication use, given the various drugs that diltiazem can interact with.<\/span><\/p>\n<h2 id=\"contraindications\"><span style=\"font-weight: 400;\">Contraindications<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Because of its effects on the heart, diltiazem can significantly worsen serious heart problems. For this reason, diltiazem is never used in people with:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Second- to third-degree heart block unless a pacemaker is implanted<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sick sinus syndrome (a defect in the heart\u2019s natural pacemaker) without an implanted pacemaker<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Acute heart attack accompanied by fluid in the lungs (pulmonary congestion)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Low blood pressure<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Allergies to the drug<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Although diltiazem IV injections are used to <\/span><a href=\"https:\/\/www.singlecare.com\/conditions\/atrial-fibrillation-treatment-and-medications\"><span style=\"font-weight: 400;\">treat atrial fibrillation<\/span><\/a><span style=\"font-weight: 400;\"> and atrial flutter, there are certain cases of Afib in which the injection is contraindicated except in facilities that allow for monitoring and resuscitation.\u00a0<\/span><\/p>\n<h3 id=\"pregnancy\"><span style=\"font-weight: 400;\">Pregnancy<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The safety of diltiazem, when given to pregnant women, has not been studied, but the risk is considered low. Healthcare providers are urged to be cautious when prescribing this drug during pregnancy or to use other treatment options.<\/span><\/p>\n<h3 id=\"breastfeeding\"><span style=\"font-weight: 400;\">Breastfeeding<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Diltiazem is present in human breast milk, but the risk to the nursing infant is unknown. The FDA urges any prescribing healthcare provider to advise mothers prescribed diltiazem to use an alternative to breastfeeding.\u00a0<\/span><\/p>\n<h3 id=\"children\"><span style=\"font-weight: 400;\">Children<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The Food and Drug Administration (FDA) has not approved diltiazem for use in children or adolescents, though some healthcare providers will prescribe it <\/span><a href=\"https:\/\/www.singlecare.com\/blog\/off-label-prescription-drugs\/\"><span style=\"font-weight: 400;\">off-label<\/span><\/a><span style=\"font-weight: 400;\"> to treat hypertension in pediatric patients.\u00a0<\/span><\/p>\n<p><strong>RELATED: <a href=\"https:\/\/www.singlecare.com\/blog\/diltiazem-alternatives\/\">What can I take instead of diltiazem?<\/a><\/strong><\/p>\n<h2 id=\"warnings\"><span style=\"font-weight: 400;\">Warnings<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Diltiazem can have significant effects on the heart and blood pressure, so there are several situations that require caution.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Some heart conditions could be worsened by diltiazem, so the drug is either avoided or used with caution and extra monitoring in people with:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Heart conduction disorders, such as heart block<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Heart failure<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Problems with the left ventricle of the heart<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Liver disease<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Gastroesophageal reflux disease (GERD)<\/span><\/li>\n<\/ul>\n<h2 id=\"dosage-considerations\"><span style=\"font-weight: 400;\">Dosage considerations<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Healthcare professionals do not consider diltiazem to carry any risk of abuse or physical dependence.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Get medical attention or call a poison control center if too much diltiazem is taken. An overdose can cause heart problems such as a slow heart rate, low blood pressure, bad dizziness, fainting, heart block, or even cardiac failure.<\/span><\/p>\n<h2 id=\"interactions\"><span style=\"font-weight: 400;\">Interactions<\/span><\/h2>\n<p><a href=\"https:\/\/www.singlecare.com\/blog\/diltiazem-interactions\/\"><span style=\"font-weight: 400;\">Diltiazem has some potentially hazardous drug interactions<\/span><\/a><span style=\"font-weight: 400;\">. The most important are drugs that affect the heart. For this reason, the ulcer drug cisapride and the antipsychotic medication thioridazine are never prescribed with diltiazem.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Other drugs that affect the heart or lower blood pressure can be used, but with care and monitoring. These include:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Heart rhythm and heart rate drugs (antiarrhythmics) such as quinidine<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Beta blockers such as Lopressor (metoprolol) and propranolol<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Antipsychotics<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Azole antifungal medications<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Digitalis drugs such as digoxin<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Nitroglycerin drugs<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Benzodiazepines, particularly Halcion (triazolam) and midazolam<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Niacin<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Diltiazem can block the ability of the liver to break down certain types of drugs. These drugs can then build up in the body, so there\u2019s an increased risk of side effects. On the other hand, some drugs block the liver\u2019s ability to break down diltiazem, again raising the risk of side effects. These two types of drugs include:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Opioids<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Some types of anticonvulsants, such as carbamazepine<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Buspirone<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Some types of immunosuppressing drugs, such as cyclosporine<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">HIV\/AIDS drugs<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Some drugs, such as the tuberculosis drug rifampin or the supplement St. John\u2019s wort, speed up the body\u2019s metabolism of diltiazem, reducing diltiazem\u2019s effectiveness at lowering blood pressure.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Drugs that raise blood pressure also reduce diltiazem\u2019s effectiveness. These include stimulants, ADHD drugs, migraine drugs, NSAIDs, over-the-counter decongestants, and caffeine.<\/span><\/p>\n<h2 id=\"how-to-avoid-diltiazem-side-effects\"><span style=\"font-weight: 400;\">How to avoid diltiazem side effects<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Diltiazem is an effective drug at controlling blood pressure, so it pays to prevent or manage some of the more common side effects. Here are a few tips.<\/span><\/p>\n<h3 id=\"1-take-diltiazem-as-prescribed\"><span style=\"font-weight: 400;\">1. Take diltiazem as prescribed<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">One of the best ways to maximize the benefits of diltiazem treatment while minimizing the downsides is to follow all the instructions given by the prescriber or written on the prescription label. Take diltiazem at the same time every day.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Don\u2019t miss a dose. Diltiazem is taken up to three times daily, so use an alarm or app to remember each dose. If a dose is missed, take it when remembered. However, if the time for taking the next dose is near, then take that dose on time and skip the missed dose.\u00a0<\/span><\/p>\n<h3 id=\"2-make-sure-the-prescriber-has-a-complete-medical-history\"><span style=\"font-weight: 400;\">2. Make sure the prescriber has a complete medical history<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Another sure way to minimize side effects is to tell the prescribing healthcare provider about all medical conditions, particularly:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Low blood pressure<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Heart problems<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Heart failure<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Liver problems<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">GERD<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pregnancy or pregnancy plans<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Breastfeeding or breastfeeding plans<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Make sure the prescriber is also aware of all medications being taken. This includes not only prescription drugs but also over-the-counter medications and dietary supplements, as well.<\/span><\/p>\n<h3 id=\"3-avoid-alcohol\"><span style=\"font-weight: 400;\">3. Avoid alcohol<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">To prevent feeling tired or fatigued, it\u2019s a good idea to either avoid drinking alcohol or not drink much. The same applies to using any drugs that can cause sleepiness, like antihistamines.<\/span><\/p>\n<h3 id=\"4-avoid-driving-and-other-risky-activities\"><span style=\"font-weight: 400;\">4. Avoid driving and other risky activities<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">To prevent injuries or accidents, avoid driving, operating machinery, or other risky activities until you\u2019re certain that diltiazem does not cause fatigue or dizziness that can impair your alertness.<\/span><\/p>\n<h3 id=\"5-stand-up-slowly\"><span style=\"font-weight: 400;\">5. Stand up slowly<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Some people taking diltiazem may feel dizzy when standing up. To decrease the chance of this happening, if rising from bed, sit at the edge of the bed for one to two minutes, then stand up slowly. Sit down when feeling dizzy.<\/span><\/p>\n<h2 id=\"how-to-treat-side-effects-of-diltiazem\"><span style=\"font-weight: 400;\">How to treat side effects of diltiazem<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Not everyone will have problems with diltiazem. But, for those who do, there are ways to manage the side effects. Some adverse effects, though, may require medical attention.<\/span><\/p>\n<h3 id=\"peripheral-swelling\"><span style=\"font-weight: 400;\">Peripheral swelling<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Elevate the feet or consider compression stockings to help reduce the swelling. If swelling persists or gets worse, talk to the prescribing healthcare provider.<\/span><\/p>\n<h3 id=\"headache\"><span style=\"font-weight: 400;\">Headache<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Take a pain reliever such as acetaminophen. NSAIDs like aspirin or ibuprofen raise blood pressure. If headaches persist or get worse, talk to the prescribing healthcare provider.<\/span><\/p>\n<h3 id=\"stomach-pain\"><span style=\"font-weight: 400;\">Stomach pain<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">For severe stomach pain, get immediate medical attention.<\/span><\/p>\n<h3 id=\"low-blood-pressure\"><span style=\"font-weight: 400;\">Low blood pressure<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Lightheadedness, dizziness, and fainting are signs that blood pressure is too low. Call a healthcare professional or get medical attention.<\/span><\/p>\n<h3 id=\"heart-problems\"><span style=\"font-weight: 400;\">Heart problems<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Contact a healthcare professional if you experience heart palpitations, heart rhythm abnormalities, or a slow heartbeat.<\/span><\/p>\n<h3 id=\"liver-problems\"><span style=\"font-weight: 400;\">Liver problems<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Diltiazem can cause serious liver problems. Contact a healthcare professional if any symptoms of liver disease are noticed, including:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Dark urine<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pale stools<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Throwing up<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Loss of appetite<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Feeling tired<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Yellowing of the skin or eyes<\/span><\/li>\n<\/ul>\n<h3 id=\"allergic-reactions\"><span style=\"font-weight: 400;\">Allergic reactions<\/span><\/h3>\n<p><span style=\"font-weight: 400;\">A hypersensitivity reaction or skin reaction to this drug will require immediate medical attention. Do not take another dose. Symptoms of a severe allergic or drug reaction include skin rash, <\/span><a href=\"https:\/\/www.singlecare.com\/conditions\/hives-treatment-and-medications\"><span style=\"font-weight: 400;\">hives<\/span><\/a><span style=\"font-weight: 400;\">, swelling of the face, mouth, or neck, trouble breathing, sore throat, fever, chills, skin peeling, skin blistering, skin pain, burning eyes, or sores in the mouth, nose, or throat.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Diltiazem is a generic prescription tablet or capsule used to treat high blood pressure and prevent chest pain (angina). Diltiazem injections are given to people during medical emergencies involving serious heart rate abnormalities like atrial fibrillation or paroxysmal supraventricular tachycardia. Some people are prescribed diltiazem under one of its brand names: Cardizem, Cardizem CD, Cardizem [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":53440,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4589],"tags":[737,12752],"coauthors":[8861],"class_list":["post-53437","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-drug-info","tag-heart-health","tag-medication-side-effects","wpautop"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.4 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>How to avoid diltiazem side effects<\/title>\n<meta name=\"description\" content=\"Edema, headache, and dizziness are common diltiazem side effects. 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