Drug Information

Acamprosate Calcium

What is ACAMPROSATE CALCIUM?

(ACAMPROSATE CALCIUM) This medication is used along with counseling and support to help people who are alcohol dependent not drink alcohol. Acamprosate works by restoring the natural balance of chemicals in the brain (neurotransmitters). Before starting this medication, you should no longer be drinking alcohol. Acamprosate has not been shown to work well if you are still drinking alcohol when you start taking it.

How should I use ACAMPROSATE CALCIUM?

Read the Patient Information Leaflet if available from your pharmacist before you start taking acamprosate and each time you get a refill. If you have any questions, ask your doctor or pharmacist. Take this medication by mouth with or without food as directed by your doctor, usually three times a day. Swallow the tablets whole. Do not crush or chew the tablets. The dosage is based on your medical condition and response to treatment. Use this medication regularly to get the most benefit from it. To help you remember, take it at the same times each day. Do not increase your dose or use this drug more often or for longer than prescribed. Your condition will not improve any faster, and your risk of side effects will increase. If you begin drinking alcohol again, continue to take this medication and tell your doctor promptly.

What should I tell my health care provider before I take ACAMPROSATE CALCIUM?

Before taking acamprosate, tell your doctor or pharmacist if you are allergic to it or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease. This drug may make you dizzy or drowsy. Alcohol or marijuana (cannabis) can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Avoid alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis). Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. It is unknown if this medication passes into breast milk. Consult your doctor before breastfeeding.

What may interact with ACAMPROSATE CALCIUM?

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

What if I miss a dose of ACAMPROSATE CALCIUM?

If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up.

What side effects may I notice from receiving ACAMPROSATE CALCIUM?

Diarrhea, nausea, vomiting, gas, stomach pain, loss of appetite, headache, drowsiness, dizziness, constipation, tiredness, weight gain/loss, muscle/joint pain, change in sexual desire or decreased sexual ability may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Tell your doctor right away if you have any serious side effects, including: mental/mood changes (including depression, thoughts of suicide), signs of kidney problems (such as change in the amount of urine), fainting, fast/pounding heartbeat, vision/hearing changes, increased thirst. Get medical help right away if you have any very serious side effects, including: stomach/abdominal pain that doesn't go away, black stools, vomit that looks like coffee grounds, seizures. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Where should I keep ACAMPROSATE CALCIUM?

Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets. Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.

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