guaifenesin and theophylline (cont.)
What happens if I miss a dose (Ed-Bron G, Elixophyllin-GG)?
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.
What happens if I overdose (Ed-Bron G, Elixophyllin-GG)?
Seek emergency medical attention if you think you have used too much of this medicine.
Overdose symptoms may include nausea, vomiting, headache, sleep problems, tremors, irritability, restlessness, fast heart rate, or seizure (convulsions).
What should I avoid while taking guaifenesin and theophylline (Ed-Bron G, Elixophyllin-GG)?
This medication can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.
Avoid drinking alcohol while taking guaifenesin and theophylline. Alcohol can increase some of the side effects of this medication.
Do not start or stop smoking without first talking to your doctor. Smoking changes the way your body uses theophylline, and you may need a dose adjustment.
Avoid eating grilled or char-broiled foods. These foods may affect how theophylline works. Talk to your doctor before making changes in your diet.
Avoid caffeine (such as in coffee, tea, or cola), which can increase the side effects of theophylline.
What other drugs will affect guaifenesin and theophylline (Ed-Bron G, Elixophyllin-GG)?
Many drugs can interact with guaifenesin and theophylline. Below is just a partial list. Tell your doctor if you are using:
- birth control pills;
- ketoconazole (Nizoral);
- an antibiotic such as ciprofloxacin (Cipro), clarithromycin (Biaxin), erythromycin (Ery-Tab, E.E.S, E-Mycin, others), levofloxacin (Levaquin), or rifampin (Rifadin, Rifamate, Rimactane);
- a thyroid hormone such as levothyroxine (Synthroid, Levoxyl, Levothroid, others);
- an interferon product such as Intron A, Alferon N, Infergen, Roferon-A, Betaseron, Avonex, Actimmune, and others;
- a calcium channel blocker such as diltiazem (Cardizem, Dilacor XR, Tiazac), nifedipine (Procardia, Adalat), verapamil (Verelan, Calan, Isoptin), and others;
- a beta-blocker such as atenolol (Tenormin), metoprolol (Lopressor, Toprol), propranolol (Inderal), timolol (Blocadren), and others;
- asthma medication such as albuterol (Ventolin, Proventil, Volmax, others), salmeterol (Serevent), and others;
- a diuretic (water pill); or
- seizure medication such as phenytoin (Dilantin) or phenobarbital (Luminal, Solfoton).
Where can I get more information?
Your pharmacist can provide more information about guaifenesin and theophylline.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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