Theo-24

DRUG DESCRIPTION

Theophylline

Theophylline is structurally classified as a methylxanthine. It occurs as a white, odorless, crystalline powder with a bitter taste. Anhydrous theophylline has the chemical name 1H-Purine-2,6-dione, 3,7-dihydro-1,3-dimethyl-, and is represented by the following structural formula:

THEO-24 (theophylline) Structural Formula Illustration

The molecular formula of anhydrous theophylline is C7H8N4O2 with a molecular weight of 180.17.

Theo-24 (theophylline anhydrous capsule) is available as capsules intended for oral administration, containing 100 mg, 200 mg, 300 mg, or 400 mg of anhydrous theophylline per capsule, in an extended-release formulation which allows a 24-hour dosing interval for appropriate patients. Inactive ingredients are edible ink (which contains synthetic black iron oxide, FD&C Blue No. 1, FD&C Blue No. 2, FD&C Yellow No. 6, D&C Yellow No. 10, FD&C Red No. 40), ethylcellulose, gelatin, pharmaceutical glaze, colloidal silicon dioxide, starch, sucrose, talc, titanium dioxide, and coloring agents: 100 mg-includes FD&C Yellow No. 6; 200 mg-FD&C Red No. 3 and D&C Yellow No. 10; 300 mg-FD&C Blue No. 1 and FD&C Red No. 40; 400 mg-FD&C Red No. 40 and D&C Red No. 28.

Theo-24 (theophylline anhydrous capsule) Extended-release capsules meet Drug Release Test 6 as published in the current USP monograph for Theophylline Extended-release Capsules.

What are the possible side effects of theophylline?

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

Stop using theophylline and call your doctor at once if you have any of these serious side effects:

  • seizure (convulsions);
  • worsening of your condition, or symptoms of new illness;
  • severe or ongoing nausea and vomiting, headache, fast or uneven heart rate, and trouble sleeping (insomnia);
  • coughing up blood or vomit that looks like coffee...

Read All Potential Side Effects and See Pictures of Theo-24


Theo-24 Patient Information Including Side Effects

Brand Names: Elixophyllin, Theo-24, TheoCap, Theochron, Theo-Time, Uniphyl

Generic Name: theophylline (Pronunciation: thee OFF i lin)

  • What is theophylline (Theo-24)?
  • What are the possible side effects of theophylline?
  • What is the most important information I should know about theophylline?
  • What should I discuss with my healthcare provider before taking theophylline?
  • How should I take theophylline?
  • What happens if I miss a dose?
  • What happens if I overdose?
  • What should I avoid while taking theophylline?
  • What other drugs will affect theophylline?
  • Where can I get more information?

What is theophylline (Theo-24)?

Theophylline is a bronchodilator. It works by relaxing muscles in the lungs and chest, and makes the lungs less sensitive to allergens and other causes of bronchospasm.

Theophylline is used to treat the symptoms of asthma, bronchitis and emphysema.

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

What are the possible side effects of theophylline?

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

Stop using theophylline and call your doctor at once if you have any of these serious side effects:

  • seizure (convulsions);
  • worsening of your condition, or symptoms of new illness;
  • severe or ongoing nausea and vomiting, headache, fast or uneven heart rate, and trouble sleeping (insomnia);
  • coughing up blood or vomit that looks like coffee grounds;
  • ongoing fever;
  • feeling restless, irritable, nervous, or jittery.
  • tremors; or
  • urinating more than usual.

Less serious side effects may include:

  • mild nausea, loss of appetite, weight loss;
  • restlessness, tremor, or insomnia; or
  • headache, lightheadedness, or dizziness.

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. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about theophylline?

If there are any changes in the brand, strength, or type of theophylline you use, your dosage needs may change. Always check your medicine when it is refilled to make sure you have received the correct brand and type as prescribed by your doctor. Ask the pharmacist if you have any questions about the medicine you receive at the pharmacy.

Do not start or stop smoking without first talking to your doctor. Smoking changes the way your body uses theophylline, and you may need to use a different dose.

Avoid drinks or foods that contain caffeine, such as coffee, tea, cola, and chocolate. Caffeine may increase some of the side effects of theophylline.

There are many other medicines that can interact with theophylline. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor or other healthcare provider who treats you.

Related Drug Centers
  • Theo-24
  • Uniphyl


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