Common use

Uniphyl CR (theophylline controlled release) is an effective bronchodilator used to treat the symptoms of asthma, chronic bronchitis, emphysema, and other chronic obstructive pulmonary disease (COPD) conditions. When you buy Uniphyl CR online, you receive a proven breathing medication that belongs to the xanthine class of drugs. Theophylline controlled release works by relaxing the smooth muscles in the lungs and chest, opening up the airway passages and making it easier to breathe. It also reduces the lungs' sensitivity to allergens, irritants, and other triggers of bronchospasm. As a xanthine bronchodilator, Uniphyl CR provides sustained therapeutic levels of theophylline throughout the day, offering consistent airway relief for patients with chronic respiratory conditions. Buy theophylline in its controlled release form for convenient, long-lasting asthma treatment and COPD management. Uniphyl generic offers the same reliable formula at an affordable cost.



Dosage and direction

Take Uniphyl CR exactly as prescribed by your doctor for optimal asthma treatment results. Do not take this bronchodilator in larger amounts or for a longer period than recommended. Follow all directions on your prescription label carefully. Swallow the controlled release tablet whole — do not crush, chew, break, or open it, as this could release the entire dose at once and increase the risk of side effects. Take Uniphyl CR with a full glass of water, with or without food, but maintain the same routine each time for consistent absorption. The typical adult dose ranges from 200 mg to 600 mg daily, individualized based on blood theophylline levels, body weight, and clinical response. Your doctor may need to check your blood levels periodically to ensure the dosage is therapeutic but not toxic. Children and patients with liver disease may require dosage adjustments.



Precautions

Avoid beverages and foods containing caffeine while taking this breathing medication, including coffee, tea, cola, energy drinks, and chocolate. Caffeine is chemically related to theophylline and may amplify certain side effects such as nervousness, insomnia, and rapid heartbeat. If you smoke cigarettes or marijuana, inform your doctor before starting Uniphyl CR — smoking significantly alters how your body metabolizes theophylline, and you may require a different dose. Equally important, do not start or stop smoking without consulting your physician first, as dosage adjustments will likely be necessary. Exercise caution when driving or performing tasks that require full alertness, as this xanthine medication may cause dizziness or restlessness in some patients.



Contraindications

Do not use Uniphyl CR if you are allergic to theophylline or any related xanthine compounds. Before starting this bronchodilator, tell your doctor if you have a history of stomach or peptic ulcers, epilepsy or other seizure disorders, heart rhythm problems (arrhythmias), congestive heart failure, fluid in the lungs (pulmonary edema), underactive thyroid (hypothyroidism), high fever, or kidney or liver disease including cirrhosis or hepatitis. Also inform your healthcare provider if you have recently quit smoking, as this can change the rate at which your body processes theophylline controlled release and may necessitate a dosage reduction.



Possible side effects

Seek emergency medical help immediately if you experience signs of an allergic reaction such as hives, difficulty breathing, or swelling of your face, lips, tongue, or throat. Stop taking Uniphyl CR and call your doctor right away if you experience any serious side effects including: seizures (convulsions), worsening of your respiratory condition or symptoms of a new illness, severe or persistent nausea and vomiting, headache, fast or irregular heart rate, trouble sleeping (insomnia), coughing up blood or vomit resembling coffee grounds, ongoing fever, feelings of restlessness, irritability, nervousness, or jitteriness, tremors, or significantly increased urination.

Less serious side effects of this breathing medication may include mild nausea, decreased appetite, slight weight loss, restlessness, mild tremor, insomnia, headache, lightheadedness, or dizziness. Inform your doctor if these effects persist or become bothersome. When you buy theophylline, understanding potential side effects helps you use the airway medication safely.



Drug interactions

Many medications can interact with Uniphyl CR, potentially affecting theophylline blood levels and increasing the risk of toxicity or reduced effectiveness. Tell your doctor about all prescription drugs, over-the-counter medicines, vitamins, minerals, and herbal products you are taking. Keep a complete medication list and share it with every healthcare provider who treats you. Pay special attention to drugs such as carbamazepine (Carbatrol, Tegretol), cimetidine (Tagamet), enoxacin (Penetrex), ephedrine and similar decongestants found in cold medicines or diet pills, erythromycin and other macrolide antibiotics, fluvoxamine (Luvox), propranolol (Inderal, InnoPran), rifampin (Rifadin), St. John's wort, and thiabendazole (Mintezol). These interactions can significantly alter how your body handles this xanthine bronchodilator, requiring careful dosage monitoring.



Missed dose

Take the missed dose of Uniphyl CR as soon as you remember. If it is nearly time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. Do not take extra medicine or a double dose to make up for the one you missed. Maintaining a consistent schedule is important for steady airway relief and optimal COPD or asthma treatment.



Overdose

A theophylline overdose requires immediate emergency medical attention. Overdose symptoms may include severe nausea, persistent vomiting, insomnia, tremors, extreme restlessness, dangerously fast or irregular heartbeat, and seizures (convulsions). Seizures caused by a Uniphyl CR overdose can be life-threatening and may result in permanent brain damage. If you suspect an overdose, contact your local poison control center or emergency services immediately.



Storage

Store Uniphyl CR (theophylline controlled release) at room temperature between 15-25 C (59-77 F), away from moisture, heat, and direct light. Keep this bronchodilator in its original container, out of reach of children and pets. Do not use after the expiration date.



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.