Always speak with your healthcare provider about possible interactions with all prescription drugs, vitamins, herbs and supplements, and over-the-counter drugs that you are taking. All possible dosages and drug forms may not be included here. Your dosage, drug form, and how often you take the drug will depend on:.
The kidneys of older adults may not work as well as they used to. This can cause your body to process drugs more slowly. As a result, more of a drug stays in your body for a longer time. This raises your risk of side effects. Your doctor may start you on a lower dosage or a different treatment schedule. This can help keep levels of the drug from building up too much in your body.
If you have moderate or severe kidney disease, your doctor may start you on mg once per day. They may increase the dosage to twice per day. They may increase your dosage to twice per day. Your doctor may start you on a lowered dosage or a different treatment schedule. If you have moderate or severe kidney disease, your doctor may start you on mg taken once per day. However, because drugs affect each person differently, we cannot guarantee that this list includes all possible dosages.
Always speak with your doctor or pharmacist about dosages that are right for you. Ranitidine is used for long-term or short-term treatment. This may make your condition worse. For this drug to work well, a certain amount needs to be in your body at all times. If you take too much: Ranitidine overdose is very rare. You would usually have to take much more than recommended before having overdose symptoms. However, if you take too much ranitidine, you could have dangerous levels of the drug in your body.
Symptoms of an overdose of this drug can include:. But if your symptoms are severe, call or go to the nearest emergency room right away. What to do if you miss a dose: Take your dose as soon as you remember. But if you remember just a few hours before your next scheduled dose, take only one dose. Never try to catch up by taking two doses at once. This could result in dangerous side effects. A prescription for this medication is refillable. You should not need a new prescription for this medication to be refilled.
Your doctor will write the number of refills authorized on your prescription. You and your doctor should monitor certain health issues. This can help make sure you stay safe while you take this drug. These issues can include your kidney function. Your doctor may do blood tests to check how well your kidneys are working. There are other drugs available to treat your condition. Some may be better suited for you than others. Talk to your doctor about other drug options that may work for you.
Taking it again could cause death. For people with kidney problems: If you have kidney problems or a history of kidney disease, you may not be able to clear this drug from your body well. This may increase the levels of ranitidine in your body and cause more side effects. For people with liver problems: If you have liver problems or a history of liver disease, you may not be able to process this drug well. This drug can trigger an acute porphyric attack. For people with gastric cancer: This drug reduces the amount of acid in your stomach.
This can help improve the symptoms of your gastrointestinal condition. However, if your symptoms are caused by a cancerous gastric tumor, you may still have the tumor. This drug does not treat cancer. Consult your pharmacist or local waste disposal company. Selected from data included with permission and copyright by First DataBank, Inc.
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Learn how we develop our content. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. Top of the page. Uses Ranitidine is known as an H2 blocker. How To Use To treat heartburn and acid indigestion, take 1 tablet with a glass of water as needed, unless otherwise directed by your doctor.
Side Effects Headache, constipation or diarrhea may occur. In the US - Call your doctor for medical advice about side effects. Precautions Before taking ranitidine, tell your doctor or pharmacist if you are allergic to it; or to other H2 blockers e.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: a certain blood disorder porphyria kidney problems liver problems other stomach problems e. Older adults may be more sensitive to the side effects of this drug, especially confusion. Ranitidine passes into breast milk. Consult your doctor before breast-feeding. Drug Interactions Drug interactions may change how your medications work or increase your risk for serious side effects.
Overdose If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call Notes Lifestyle changes such as stress reduction programs, stopping smoking, limiting alcohol, and diet changes such as avoiding caffeine and certain spices may help this medication work better.
Missed Dose Not applicable. Storage Different brands of this medication have different storage needs. Information last revised May Copyright c First Databank, Inc. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice. Store the tablets at room temperature, protect them from light and moisture, and keep them out of the reach of children.
Protect it from light, and do not allow it to freeze. Keep it out of the reach of children. Do not dispose of medications in wastewater e. Ask your pharmacist how to dispose of medications that are no longer needed or have expired. Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent. The side effects listed below are not experienced by everyone who takes this medication.
If you are concerned about side effects, discuss the risks and benefits of this medication with your doctor. Many of these side effects can be managed, and some may go away on their own over time. Contact your doctor if you experience these side effects and they are severe or bothersome.
Your pharmacist may be able to advise you on managing side effects. Although most of these side effects listed below don't happen very often, they could lead to serious problems if you do not seek medical attention. Stop taking the medication and seek immediate medical attention if any of the following occur:. Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking this medication. Before you begin using a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health.
These factors may affect how you should use this medication. Kidney function: Kidney disease or reduced kidney function may cause this medication to build up in the body, causing side effects. If you have reduced kidney function or kidney disease, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.
Pneumonia: People with lung disease, a weak immune system, or diabetes may be at an increased risk of developing pneumonia while taking ranitidine.
If you have any of these conditions, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed. Porphyria: Ranitidine may cause attacks of a condition called acute porphyria a disorder that affects the production of heme in the body.
People with a history of acute porphyria should not take ranitidine. Stomach cancer: Using medications such as ranitidine may prevent symptoms of stomach cancer from being noticed. If you have recurrent vomiting, difficulty swallowing, blood in the stool, significant unintentional weight loss, fatigue anemia , or are coughing up blood, check with your doctor right away.
If you have heartburn that worsens or returns after using this medication continuously for 2 weeks, check with your doctor. Pregnancy: This medication should not be used during pregnancy unless the benefits outweigh the risks.
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