Common use

Theo-24 SR (theophylline sustained release) is an effective oral bronchodilator used to treat and manage symptoms of asthma, chronic bronchitis, emphysema, and other chronic obstructive pulmonary disease (COPD) conditions. When you buy Theo-24 SR online, you receive a proven breathing medication belonging to the xanthine class of drugs. Theophylline sustained release is a chemical relative of caffeine that works by relaxing the smooth muscles surrounding the airways, opening up bronchial passages and making it significantly easier to breathe. As a xanthine bronchodilator, Theo-24 SR also reduces the lungs' sensitivity to allergens, irritants, and other triggers that cause bronchospasm and airway constriction. The sustained release formulation provides consistent therapeutic theophylline levels over an extended period, offering reliable airway relaxant effects throughout the day and night. Buy theophylline in this convenient once- or twice-daily sustained release form for effective, long-lasting asthma and COPD treatment. Theo-24 generic delivers the same trusted formula at an affordable price for patients needing chronic respiratory care.



Dosage and direction

Take Theo-24 SR orally with or without food, swallowing the tablets whole with a full glass of water. Do not crush, chew, or break the sustained release tablets, as this will destroy the controlled delivery mechanism and may cause a sudden, potentially dangerous release of the entire dose. If you are taking this bronchodilator on a once-daily schedule, do not take the dose at bedtime, as theophylline may cause insomnia. The recommended starting dose for adults is typically one 150-milligram tablet every 12 hours. Your doctor may gradually increase your dose based on blood theophylline levels and clinical response, up to a maximum of 600 milligrams per day. Dosage for children aged 6 to 16 years is calculated based on body weight. Your physician will order periodic blood tests to ensure theophylline levels remain in the safe therapeutic range (typically 10-20 mcg/mL). Always consult your doctor before adjusting your dose of this breathing medication, as individual needs vary significantly.



Precautions

Use Theo-24 SR with caution if your medical history includes liver disease (hepatic impairment), diabetes mellitus, hyperthyroidism, hypertension, heart failure, or peptic ulcer disease. Do not drink alcohol while taking this xanthine bronchodilator, as alcohol can alter theophylline metabolism and increase the risk of side effects. If you are a smoker, your body metabolizes theophylline more rapidly, which means you may require higher or more frequent doses compared to non-smokers. Equally important, if you quit smoking while on Theo-24 SR, your dose may need to be reduced to prevent toxicity — always inform your doctor about any changes in your smoking habits. Avoid excessive caffeine intake (coffee, tea, cola, energy drinks, chocolate) as caffeine is chemically related to theophylline and can amplify side effects. Theo-24 SR should not be used during pregnancy or while breastfeeding without explicit medical advice. This airway relaxant medication may cause drowsiness or jitteriness in some patients, so exercise caution when driving or operating machinery.



Contraindications

Do not take Theo-24 SR if you are hypersensitive to theophylline or any of its components. This sustained release bronchodilator is contraindicated in patients with an active peptic ulcer or a seizure disorder such as epilepsy, as theophylline can lower the seizure threshold. Patients with uncontrolled arrhythmias, severe cardiac disease, or active gastroesophageal reflux should use this medication only under close medical supervision. Inform your doctor about all pre-existing conditions before you buy theophylline or Theo-24 generic to ensure safe and effective use of this breathing medication.



Possible side effects

Theo-24 SR may cause allergic reactions in rare cases, including hives, difficulty breathing, and swelling. Contact your doctor immediately if you experience any serious side effects including:

Seizures (convulsions) — a medical emergency requiring immediate attention;

Worsening of your respiratory condition or symptoms of a new illness;

Severe or persistent nausea and vomiting, headache, fast or uneven heart rate, or trouble sleeping (insomnia);

Coughing up blood or vomit that resembles coffee grounds;

Ongoing fever;

Feeling restless, irritable, nervous, or jittery;

Tremors;

Significantly increased urination.

Less serious side effects of this xanthine bronchodilator may include: mild nausea, decreased appetite, slight weight loss, restlessness, mild tremor, insomnia, headache, lightheadedness, or dizziness. These effects often subside as your body adjusts to the medication. Report any persistent or unusual side effects to your doctor. When you buy Theo-24 SR online, understanding potential side effects helps ensure the safest possible use of this airway relaxant.



Drug interaction

Theo-24 SR interacts with numerous medications that can significantly alter theophylline blood levels. Important interactions include: carbamazepine, cimetidine, enoxacin, ephedrine and similar decongestants found in cold medicines or diet pills, erythromycin and other macrolide antibiotics, fluvoxamine, propranolol and other beta-blockers, rifampin, St. John's wort, and thiabendazole. Some of these drugs increase theophylline levels (raising toxicity risk), while others decrease them (reducing effectiveness). Quinolone antibiotics (such as ciprofloxacin), oral contraceptives, and certain antiviral medications can also affect how your body processes this sustained release bronchodilator. An interaction between two medications does not always mean one must be stopped, but dosage adjustments and closer monitoring may be necessary. Always inform your doctor about every prescription drug, over-the-counter medication, vitamin, and herbal supplement you take to ensure safe use of this breathing medication.



Missed dose

If you forget to take a dose of Theo-24 SR, take it as soon as you remember. However, if it is nearly time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for the one you missed. Take your usual dose at the next regularly scheduled time. Maintaining a consistent dosing schedule is essential for steady theophylline levels and optimal asthma or COPD treatment.



Overdose

A theophylline overdose is a serious medical emergency. Symptoms of Theo-24 SR overdose may include severe nausea, persistent vomiting, extreme restlessness, tremors, dangerously fast or irregular heartbeat, insomnia, and seizures (convulsions). Seizures caused by a theophylline overdose can result in death or permanent brain damage. If you suspect an overdose, contact emergency medical services or your local poison control center immediately. Do not wait for symptoms to worsen — prompt treatment is critical for the best possible outcome.



Storage

Store Theo-24 SR at room temperature between 15-25 C (59-77 F), away from light, moisture, and heat. Keep this bronchodilator in its original container, out of reach of children and pets. Do not use after the expiration date printed on the packaging. Dispose of expired medication according to local guidelines.



Disclaimer

We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. Any specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.