This medication is used to prevent liver damage from acetaminophen overdose.
Read the Patient Information Leaflet if available from your pharmacist before you start taking acetylcysteine. If you have any questions, ask your doctor or pharmacist.
Take this medication only by mouth as directed by your doctor, usually every 4 hours for the number of prescribed doses. The dosage is based on your weight, medical condition and response to treatment.
Dissolve the prescribed number of tablets in water. If you weigh less than 132 pounds (60 kilograms) use 5 ounces or 150 milliliters of water. If you weigh 132 pounds or more, use 10 ounces or 300 milliliters. After the tablets are fully dissolved, drink the solution right away. Once dissolved in water, this medication should be taken within 2 hours.
Tell your doctor if you vomit within 1 hour after taking your medication. You may need to take another dose.
Remember to take each of the prescribed doses of this medication to get the most benefit from it.
Tell your doctor if your condition gets worse.
Nausea, vomiting, or stomach pain may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
Remember that your doctor has prescribed this medication because he or she 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.
Get medical help right away if you have any very serious side effects, including: severe stomach/abdominal pain, black stools, vomit that looks like coffee grounds.
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.
Before taking acetylcysteine, 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: bleeding in your esophagus, stomach/intestinal problems (such as ulcers).
This medication contains sodium. Talk to your doctor or pharmacist if you are on a salt-restricted diet or if you have a condition that could get worse if you eat more salt (such as heart failure, high blood pressure).
Tell your doctor if you are pregnant before using this medication.
It is unknown if this medication passes into breast milk. Consult your doctor before breast-feeding.
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.
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.
Do not share this medication with others.
Lab and/or medical tests (such as liver/kidney function test, acetaminophen drug levels, blood mineral levels) should be done while you are taking this medication. Keep all medical and lab appointments. Consult your doctor for more details.
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.
Store at room temperature away from light and moisture. Keep the tablets in their original blister package. 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.
Information last revised July 2016. Copyright(c) 2016 First Databank, Inc.
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