Aminophylline is a bronchodilator that is used with other medications to treat sudden worsening of the symptoms of asthma, bronchitis, or emphysema.

Aminophylline may also be used for purposes not listed in this medication guide.

You should not be treated with this medicine if you are allergic to aminophylline or theophylline.

If possible before you receive aminophylline, tell your caregivers if you have recently had a fever, or if you have ever had:

• a stomach ulcer;
• seizures;
• heart problems;
• fluid in your lungs;
• a thyroid disorder;
• cirrhosis, hepatitis, or other liver problems;
• kidney disease; or
• a serious infection called sepsis.

Tell your doctor if you smoke or have recently stopped smoking. Smoking can affect your aminophylline dose needs.

It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant.

Aminophylline can pass into breast milk and may cause fussiness or other side effects in the nursing baby. Tell your doctor if you are breast-feeding.

In an emergency, you may not be able to tell caregivers about your health conditions. Make sure any doctor caring for you afterward knows you received this medicine.

Use Aminophylline (Injection) exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Tell your caregivers right away if you have:

• vomiting or severe nausea;
• fast or irregular heartbeats;
• a seizure;
• high blood sugar--increased thirst, increased urination, dry mouth, fruity breath odor; or
• low potassium level--leg cramps, constipation, irregular heartbeats, fluttering in your chest, numbness or tingling, muscle weakness or limp feeling.

Serious side effects may be more likely in older adults.

Common side effects may include:

• nausea, vomiting, diarrhea;
• feeling restless or irritable;
• tremors;
• increased urination;
• headache; or
• sleep problems (insomnia).

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Follow your doctor's instructions about any restrictions on food, beverages, or activity.