guaifenesin/dextromethorphan/decongestant - oral (cont.)
HOW TO USE: If you are taking the over-the-counter product, read all directions on the product package before taking this medication. If you have any questions, consult your pharmacist. If your doctor has prescribed this medication, take it as directed.Take the tablet, capsule, or liquid form by mouth with or without food. Follow the directions for dosing on the label, or take as directed by your doctor. Drink plenty of fluids when you use this medication unless otherwise directed by your doctor. The fluid will help loosen the mucus in your lungs. This medication can be taken with food if stomach upset occurs.If you are using the liquid form, use a medication measuring device to carefully measure the prescribed dose. Do not use a household spoon. If your liquid form is a suspension, shake the bottle well before each dose.If you are using sustained-release tablets or capsules, swallow the medication whole. Do not crush or chew the tablets or capsules. Doing so can destroy the long action of the drug and may increase side effects.The dosage is based on your age, medical condition, and response to therapy.Improper use of this medication (abuse) may result in serious harm (e.g., brain damage, seizure, death). Do not increase your dose or take this medication more often than recommended by your doctor or the package instructions without your doctor's approval.Inform your doctor if your condition persists for more than 1 week, if it worsens, or if it occurs with fever, rash, or persistent headache. These may be symptoms of a serious medical problem and should be checked by a doctor.
SIDE EFFECTS: Dizziness, headache, nausea, nervousness, or trouble sleeping may occur. If any of these effects persist or worsen, contact your doctor or pharmacist promptly.If your doctor has prescribed this drug, remember that your doctor has prescribed it 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.Tell your doctor if any of these unlikely but serious side effects occur: mental/mood changes (e.g., confusion, hallucinations), shaking (tremors), weakness.Tell your doctor if any of these rare but very serious side effects occur: fast/slow/irregular heartbeat.A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: 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.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Back to Medications Index
Get the latest health and medical information delivered direct to your inbox FREE!