This information from Lexicomp® explains what you need to know about this medication, including what it’s used for, how to take it, its side effects, and when to call your healthcare provider.
Acid Controller Max St [OTC] [DSC]; Acid Controller Original Str [OTC] [DSC]; Acid Reducer [OTC]; Famotidine Maximum Strength [OTC]; Famotidine Orig St [OTC]; Heartburn Relief Max St [OTC]; Heartburn Relief [OTC]; Pepcid; Pepcid AC Maximum Strength [OTC]
ALTI-Famotidine; APO-Famotidine; CO Famotidine; Famotidine Omega W-O Preserv; Famotidine Omega W-Preserv; GMD-Famotidine; JAMP Famotidine; MYLAN-Famotidine [DSC]; TEVA-Famotidine
- It is used to treat or prevent GI (gastrointestinal) ulcers.
- It is used to treat gastroesophageal reflux disease (GERD; acid reflux).
- It is used to treat heartburn and sour stomach.
- It is used to treat syndromes caused by lots of stomach acid.
- It may be given to you for other reasons. Talk with the doctor.
- If you are allergic to this drug; any part of this drug; or any other drugs, foods, or substances. Tell your doctor about the allergy and what signs you had.
- If you have any of these health problems: Black or bloody stools; heartburn with light-headedness, sweating, or dizziness; chest pain; shoulder pain with shortness of breath; pain that spreads to the arms, neck, or shoulders; light-headedness; sweating a lot; throwing up blood; or trouble or pain swallowing food.
- If you are taking any of these drugs: Cefditoren, dasatinib, delavirdine, or fosamprenavir.
This is not a list of all drugs or health problems that interact with this drug.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take this drug with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
- Tell all of your health care providers that you take this drug. This includes your doctors, nurses, pharmacists, and dentists.
- Do not take this drug for longer than you were told by your doctor.
- If you have kidney problems or are 65 or older, talk with your doctor. Hallucinations (seeing or hearing things that are not there); seizures; and feeling agitated, confused, sluggish, or out of sorts have happened in people with kidney problems and in older people.
- This drug may prevent other drugs taken by mouth from getting into the body. If you take other drugs by mouth, you may need to take them at some other time than this drug. Talk with your doctor.
- Tell your doctor if you are pregnant, plan on getting pregnant, or are breast-feeding. You will need to talk about the benefits and risks to you and the baby.
- Some products have benzyl alcohol. Do not give a product that has benzyl alcohol in it to a newborn or infant. Talk with the doctor to see if this product has benzyl alcohol in it.
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Dizziness or passing out.
- Fast or abnormal heartbeat.
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to your national health agency.
Use this drug as ordered by your doctor. Read all information given to you. Follow all instructions closely.
All oral products:
- Take with or without food.
- Ask your doctor before you take antacids with this drug.
- Chew or crush well. Do not swallow it whole.
- Shake well before use.
- Measure liquid doses carefully. Use the measuring device that comes with this drug. If there is none, ask the pharmacist for a device to measure this drug.
- It is given as a shot into a vein.
All oral products:
- Take a missed dose as soon as you think about it.
- If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
- Many times this drug is taken on an as needed basis. Do not take more often than told by the doctor.
- Call your doctor to find out what to do.
All oral products:
- Store at room temperature in a dry place. Do not store in a bathroom.
- Throw away any part not used after 1 month.
- If you need to store this drug at home, talk with your doctor, nurse, or pharmacist about how to store it.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else’s drugs.
- Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, nurse, pharmacist, or other health care provider.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about this drug, please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from the healthcare provider. You must talk with the healthcare provider for complete information about the risks and benefits of using this medicine. The use of this information is governed by the Lexicomp End User License Agreement, available at https://www.wolterskluwer.com/en/solutions/lexicomp/about/eula.
© 2021 UpToDate, Inc. and its affiliates and/or licensors. All rights reserved.