Introduction

Dyphylline (DYE-fi-lin)

Treats asthma attacks and other lung problems such as emphysema and chronic bronchitis. This medicine is a bronchodilator.

Brand Name(s)

There may be other brand names for this medicine.

Dylix, Lufyllin, Lufyllin-400

When This Medicine Should Not Be Used

You should not use this medicine if you have had an allergic reaction to dyphylline or similar medicines such as theophylline (Theolair®, Uniphyl®) or aminophylline.

How to Use This Medicine

Liquid, Tablet

• Your doctor will tell you how much of this medicine to use and how often. Your dose may need to be changed several times in order to find out what works best for you. Do not use more medicine or use it more often than your doctor tells you to.
• Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

If a dose is missed:

• If you miss a dose or forget to use your medicine, use it as soon as you can. If it is almost time for your next dose, wait until then to use the medicine and skip the missed dose. Do not use extra medicine to make up for a missed dose.

How to Store and Dispose of This Medicine

• Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
• Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any leftover medicine after you have finished your treatment. You will also need to throw away old medicine after the expiration date has passed.
• Keep all medicine away from children and never share your medicine with anyone.

Drugs and Foods to Avoid

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

• Make sure your doctor knows if you are using ephedrine or probenecid (Benemid®). Tell your doctor if you are also using other medicines for breathing problems such as theophylline (Theolair®).
• There are many medicines that can interact with this medicine. Make sure your doctor knows about all other medicines you are using.

Warnings While Using This Medicine

• Make sure your doctor knows if you are pregnant or breast feeding.
• Make sure your doctor knows if you have high blood pressure, heart disease, kidney disease, an overactive thyroid, or stomach ulcers.

Possible Side Effects While Using This Medicine

Call your doctor right away if you notice any of these side effects:

• Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing.
• Blood in your urine.
• Bloody vomit.
• Fast, uneven, or pounding heartbeat.
• Increase in how much or how often you urinate.
• Lightheadedness or fainting.
• Rapid breathing.
• Severe vomiting, agitation, extreme thirst, seizures.
• Warmth or redness in your face, neck, arms, or upper chest.

If you notice these less serious side effects, talk with your doctor:

• Feeling irritable, restless or agitated.
• Headache or trouble sleeping.
• Mild nausea, vomiting, diarrhea, or stomach pain.
• Muscle twitching.
• Pale, clammy skin.

If you notice other side effects that you think are caused by this medicine, tell your doctor

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088