OVERDOSE: If overdose is suspected, contact a poison control center or emergency room immediately. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: agitation, severe vomiting, extreme thirst, ringing in the ears, increased sweating, slow/shallow breathing, fainting, chest pain, fast/irregular heartbeat, seizures.
NOTES: Do not share this medication with others.Avoid substances that can worsen breathing problems by causing irritation or allergic reaction, such as smoke, pollen, pet dander, dust, and mold.Laboratory and/or medical tests (such as theophylline blood levels) should be performed periodically to monitor your progress or check for side effects. It is important that you do not miss your medication or take extra doses for at least 2 days before your theophylline blood levels are checked. Consult your doctor for more details.To help loosen mucus, drink plenty of fluids while taking this medication unless your doctor instructs you otherwise.If you have asthma, learn to use a peak flow meter, use it daily, and promptly report worsening breathing problems (such as readings in the yellow/red range, increased use of quick-relief inhalers).Because the flu virus can worsen breathing problems, ask your doctor or pharmacist if you should have a flu shot every year.
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