Generic Name: dyphylline and guaifenesin (DYE fil in and gwye FEN e sin)Brand Names: COPD, Difil G, Difil-G Forte, Dilex-G, Dy-G, Dyfilin GG, Dyflex-G, Dyphylline GG, Jay-Phyl, Lufyllin-GG, Panfil G
Dyphylline is a bronchodilator. It works by relaxing muscles in the airways to improve breathing.
Guaifenesin is an expectorant. It helps loosen congestion in your chest and throat, making it easier to cough out through your mouth.
The combination of dyphylline and guaifenesin is used to treat cough and breathing problems caused by bronchial asthma, chronic bronchitis, or emphysema. This medication is not a cure for asthma, bronchitis, or emphysema.
Dyphylline and guaifenesin may also be used for other purposes not listed in this medication guide.
Before taking this medication, tell your doctor if you have heart disease or a history of heart attack, high blood pressure, overactive thyroid, or a stomach ulcer.
Take this medication exactly as prescribed by your doctor. Do not take it in larger amounts or for longer than recommended. Follow the directions on your prescription label.Always ask a doctor before giving cough or cold medicine to a child. Death can occur from the misuse of cough or cold medicine in very young children. Drink extra fluids to help loosen the congestion and lubricate your throat while you are taking this medication.
Do not use any other over-the-counter cough or cold medication without first asking your doctor or pharmacist. Guaifenesin is contained in many medicines available over the counter. If you take certain products together you may accidentally take too much guaifenesin. Read the label of any other medicine you are using to see if it contains guaifenesin.
If you have certain conditions, you may need a dose adjustment or special tests to safely use this medication. Before you take dyphylline and guaifenesin, tell your doctor if you have:
heart disease or a history of heart attack;
high blood pressure;
overactive thyroid; or
a stomach ulcer.
Take this medication exactly as prescribed by your doctor. Do not take it in larger amounts or for longer than recommended. Follow the directions on your prescription label.Always ask a doctor before giving cough or cold medicine to a child. Death can occur from the misuse of cough or cold medicine in very young children. Drink extra fluids to help loosen the congestion and lubricate your throat while you are taking this medication. Take dyphylline and guaifenesin with food if it upsets your stomach.
Measure the liquid form of dyphylline and guaifenesin with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.
This medication can cause you to have unusual results with certain medical tests. Tell any doctor who treats you that you are using dyphylline and guaifenesin.Store dyphylline and guaifenesin at room temperature away from moisture, heat, and light.
Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.
Overdose symptoms may include nausea, vomiting, diarrhea, thirst, sweating, fast or slow heart rate, ringing in your ears, feeling anxious or irritable, and seizure (convulsions).
fast, pounding, or uneven heartbeats;
feeling like you might pass out;
seizure (convulsions); or
extreme thirst with headache, nausea, vomiting, and weakness.
Less serious side effects may include:
mild nausea, vomiting, or stomach pain;
feeling restless, agitated, or irritable;
sleep problems (insomnia); or
warmth, redness, or tingly feeling under your skin.
This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.
The following drugs can interact with dyphylline and guaifenesin. Tell your doctor if you are using any of these:
aminophylline (Phyllocontin, Truphylline); or
theophylline (Elixophyllin, Theo-24, Uniphyl).
This list is not complete and there may be other drugs that can interact with dyphylline and guaifenesin. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.