Guaifenesin AC Liquid

• It is used to thin mucus so it can be taken from the body by coughing.
• It is used to relieve coughing.

• Tell all of your health care providers that you take this medicine. This includes your doctors, nurses, pharmacists, and dentists.
• Do not take more than what your doctor told you to take. Taking more than you are told may raise your chance of very bad side effects.
• Do not use longer than you have been told by the doctor.
• Avoid driving and doing other tasks or actions that call for you to be alert until you see how Guaifenesin AC Liquid affects you.
• To lower the chance of feeling dizzy or passing out, rise slowly if you have been sitting or lying down. Be careful going up and down stairs.
• This medicine may be habit-forming with long-term use.
• Do not take this medicine with other strong pain drugs or if you are using a pain patch without talking to your doctor first.
• This medicine may affect certain lab tests. Tell all of your health care providers and lab workers that you take Guaifenesin AC Liquid.
• If you are 65 or older, use this medicine with care. You could have more side effects.
• Different brands of Guaifenesin AC Liquid (guaifenesin and codeine) may have different doses for children. Talk with the doctor before giving this medicine to a child.
• The chance of very bad side effects may be higher in children. This may be more likely to happen in children who have breathing problems. Deadly breathing problems have happened with the use of codeine in some children. Talk with the doctor.
• This medicine may cause harm to the unborn baby if you take it while you are pregnant. If you are pregnant or you get pregnant while taking Guaifenesin AC Liquid, call your doctor right away.
• Using this medicine for a long time during pregnancy may lead to withdrawal in the newborn baby. This can be life-threatening. Talk with the doctor.

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 or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
• Very bad dizziness or passing out.
• Chest pain or pressure or a fast heartbeat.
• Trouble breathing, slow breathing, or shallow breathing.
• Noisy breathing.
• Feeling very sleepy.
• Feeling confused.
• A heartbeat that does not feel normal.
• Hallucinations (seeing or hearing things that are not there).
• Mood changes.
• Seizures.
• Very bad belly pain.
• Very bad headache.
• Trouble passing urine.
• Shakiness.
• Change in eyesight.
• Very upset stomach or throwing up.
• Very hard stools (constipation).
• Feeling very tired or weak.

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.

• Store at room temperature.
• Store in a dry place. Do not store in a bathroom.
• Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
• Check with your pharmacist about how to throw out unused drugs.