THEOPHYLLINE (the OFF i lin) is a bronchodilator. It helps open up the airways in your lungs to make it easier to breathe. This medicine is used to treat the symptoms of asthma, bronchitis, and emphysema.
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Shake well before using. Use a specially marked spoon or container to measure your medicine. Household spoons are not accurate. Take your doses at regular intervals, at the same time each day. Do not take your medicine more often than directed. Do not stop taking except on your doctor's advice.
Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for selected conditions, precautions do apply.
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
fast or irregular breathing or heartbeat
feeling faint or lightheaded, falls
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
anxiety, irritable, restless
increased need to pass urine
Do not take this medicine with any of the following medications:
This medicine may also interact with the following medications:
medicines for anxiety or sleep
medicines for colds and breathing difficulties
some antibiotics or anti infectives
some medicines for irregular heart rhythms
some medicines for treating seizures
some medicines used during surgery
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Keep out of the reach of children.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Do not freeze. Keep container tightly closed. Throw away any unused medicine after the expiration date.
They need to know if you have any of these conditions:
if you smoke
stomach problems like ulcers
an unusual or allergic reaction to theophylline, aminophylline, caffeine, theobromine, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
Visit your doctor or health care professional for regular checks on your progress. Your doctor or health care professional may schedule regular blood tests, especially at first. Tell your doctor if your symptoms do not improve or if they get worse.
There are many different brands of this medicine. Do not change your brand without checking with your health care professional. Different brands of this medicine may act differently in your body.
Tell all of your doctors that you are taking this medicine. Talk to your doctor before you start or stop ANY over-the-counter or prescription medicines. Also talk to your health care professional about foods that affect this medicine, like chocolate, coffee, teas and charcoal-broiled foods. If you smoke tobacco or marijuana you may affect the level of this medicine in your body. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.