How does ranitidine work

The maximum dose is mg every 24 hours. Do not take it in this manner for more than 2 weeks without seeking medical advice. Injection: The injectable form of ranitidine may be used in hospitals under specific circumstances when the patient is not able to swallow tablets.

The usual dose of ranitidine injection is 50 mg every 6 to 8 hours given intravenously into a vein or intramuscularly into a muscle. If you are using the oral liquid form of ranitidine, use an oral syringe to measure each dose of the liquid, as it gives a more accurate measurement than household teaspoons.

Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.

It is important to take this medication exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. 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. Type keyword s to search. What is ranitidine? Zantac is a well-known brand name for ranitidine. What is ranitidine used for? Ranitidine is prescribed for the following reasons in adults, children and babies: Treating peptic ulcers and preventing recurrent bleeding from peptic ulcers.

Gastro-oesophageal reflux disease , including relieving heartburn and long-term management of healed oesophagitis. Chronic indigestion related to meals or that disturbs sleep, but which is not related to any of the above conditions. Preventing bleeding from stress ulceration in the gut in people who are critically ill, eg in intensive care. Preventing inhalation of acid from the stomach acid aspiration while under general anaesthetic during surgery, and in pregnant women during labour.

How does ranitidine work? Read more about ranitidine How do I take ranitidine? What should I know before taking ranitidine? 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. To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location — one that is up and away and out of their sight and reach.

In case of overdose, call the poison control helpline at If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at Before having any laboratory test, tell your doctor and the laboratory personnel that you are taking ranitidine. Do not let anyone else take your medicine.

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.

You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies. Generic alternatives may be available.

Ranitidine pronounced as ra ni' ti deen. Why is this medication prescribed? How should this medicine be used? Other uses for this medicine What special precautions should I follow? What special dietary instructions should I follow? What should I do if I forget a dose? What side effects can this medication cause?

What should I know about storage and disposal of this medication? Brand names. Patients : Patients taking prescription ranitidine should speak with their health care professional about other treatment options before stopping the medicine, as there are multiple drugs approved for the same or similar uses as ranitidine that do not carry the same risks from NDMA.

Other uses for this medicine.