Type of medicine: bronchodilator; expectorant
Generic and brand names: guaifenesin and theophylline, oral; ED-Bron-G; Equi-Bron; Theomar
This medicine is taken to treat the symptoms of lung problems such as asthma, emphysema, and bronchitis. Guaifenesin is an expectorant used to help bring up mucus from the lungs and thin secretions. Theophylline is a bronchodilator that opens up the air passages (bronchial tubes) in the lungs.
Before taking this medicine, tell your healthcare provider if you have ever had:
Tell your healthcare provider if you smoke.
Females of childbearing age: Tell your healthcare provider if you are pregnant or plan to become pregnant. It is not known whether this medicine will harm an unborn baby. Do not breast-feed while taking this medicine without your healthcare provider's approval.
Check the label on the medicine for directions about your specific dose. Take this medicine exactly as your healthcare provider prescribes. Do not take more or less or take it longer than prescribed. Do not stop taking this medicine without your healthcare provider's approval.
Take your doses at the same time every day to keep a constant level medicine in your blood. Take it 1 hour before or 2 hours after meals.
This medicine may come in different forms. If you have extended-release tablets, do not break, crush, or chew them. Swallow them whole. Ask your pharmacist if you have the extended-release tablets.
Drink plenty of water with this medicine to help loosen the mucus or phlegm in the lungs.
If you miss a dose, take it as soon as you remember unless it is almost time for the next dose. In that case, skip the missed dose and take the next one as directed. Do not take double doses. If you are not sure of what to do if you miss a dose, or if you miss more than one dose, contact your healthcare provider.
If you or anyone else has intentionally taken too much of this medicine, call 911 or go to the emergency room right away. If you pass out, have seizures, weakness or confusion, or have trouble breathing, call 911. If you think that you or anyone else may have taken too much of this medicine, call the poison control center. Do this even if there are no signs of discomfort or poisoning. The poison control center number is 800-222-1222.
Symptoms of an acute overdose may include: nausea, vomiting, tremors, restlessness, seizures, irregular heartbeat.
Do not give a child under age 4 any cough and cold medicines unless specifically instructed to do so by your healthcare provider. Talk with your healthcare provider about this.
This medicine may increase the stimulant effects of caffeine. Avoid foods and drinks containing caffeine (for example, coffee, tea, cocoa, colas, and chocolate).
You may need to have blood tests regularly to see how this medicine affects you. Keep all appointments for these tests.
This medicine may cause dizziness. Use caution when driving or operating machinery.
Certain types of diets (such as high-protein, low-carbohydrate, or high-fat diets) may affect how this medicine works. Talk with your healthcare provider about this.
Inform your healthcare provider if you start or stop smoking. This may affect the way the medicine works in your body.
If you need emergency care, surgery, or dental work, tell the healthcare provider or dentist you are taking this medicine.
Along with its needed effects, your medicine may cause some unwanted side effects. Some effects may be very serious. Some side effects may go away as your body adjusts to the medicine. Tell your healthcare provider if you have any side effects that continue or get worse.
Life-threatening (Report these to your healthcare provider right away). If you cannot reach your healthcare provider right away, get emergency medical care or call 911 for help): Allergic reaction (hives; itching; rash; trouble breathing; chest pain or tightness in your chest; swelling of your lips, tongue, and throat).
Serious (report these to your healthcare provider right away): Diarrhea, nausea, vomiting, abdominal pain, irregular or rapid (pounding) heartbeat, seizures, muscle twitching, rapid breathing, headache that does not go away.
Other: Increased urination, dizziness, headache, rash, nervousness, trouble sleeping.
When you take this medicine with other medicines, it can change the way this or any of the other medicines work. Nonprescription medicines, vitamins, natural remedies, and certain foods may also interact. Using these products together might cause harmful side effects. Talk to your healthcare provider if you are taking:
Do not smoke cigarettes while taking this medicine. Do not drink alcohol while taking this medicine without your healthcare provider's approval.
If you are not sure if your medicines might interact, ask your pharmacist or healthcare provider. Keep a list of all your medicines with you. List all the prescription medicines, nonprescription medicines, supplements, natural remedies, and vitamins that you take. Be sure that you tell all healthcare providers who treat you about all the products you are taking.
Store this medicine at room temperature. Keep the container tightly closed. Protect it from heat, high humidity, and bright light.
This advisory includes selected information only and may not include all side effects of this medicine or interactions with other medicines. Ask your healthcare provider or pharmacist for more information or if you have any questions.
Ask your pharmacist for the best way to dispose of outdated medicine or medicine you have not used. Do not throw medicine in the trash.
Keep all medicines out of the reach of children.
Do not share medicines with other people.
