Theophylline

Uses of Theophylline

Theophylline is commonly used in Asthma Prevention and treatment of Chronic Obstructive Pulmonary Disease (COPD).

How Theophylline Works

Theophylline dilates the bronchial airways and pulmonary blood vessels by increasing cyclic adenine monophosphate (cAMP) tissue concentrations by blocking the phosphodiesterase on the smooth muscle.

Side Effects of Theophylline

Nausea, Vomiting, Pain at the center of the abdomen, Diarrhea, Loss of weight, Vomiting blood, Headache, Restlessness, Dizziness, Palpitation, Low blood pressure, Increase in urination frequency.

Information About Theophylline

Theophylline is a methylxanthine bronchodilator used for maintenance treatment of asthma and COPD in Singapore. Available as a 100mg–400mg modified-release oral tablet taken once to twice daily, it is HSA-registered and available on prescription only in Singapore. Its narrow therapeutic index requires regular serum theophylline level monitoring — levels above 20mcg/ml produce serious toxicity including seizures and arrhythmias, and levels are significantly affected by smoking, age, hepatic function, and numerous drug interactions. A valid doctor's consultation is required before dispensing. Order Theophylline online at DoctorOnCall Singapore with same-day delivery available. Speak to a DoctorOnCall physician today to check if Theophylline is right for you.


Theophylline is a medication commonly used to manage asthma, chronic obstructive pulmonary disease (COPD), and other respiratory conditions by helping improve breathing. It works by relaxing the muscles of the airways, reducing airway obstruction, and improving airflow to the lungs. Theophylline belongs to a class of medications known as methylxanthine bronchodilators and is widely used in respiratory care. Find affordable Theophylline options from trusted brands at DoctorOnCall.

Conclusion

Consult our doctors online for safe and effective use of Theophylline tailored to your health needs. Find the best prices for affordable Theophylline tablets, extended-release tablets, capsules, oral solutions, and injectable formulations at DoctorOnCall Singapore.


Warnings

Kidney Use With Care

Glomerular Filtration Rate (GFR) which is one of the indicators of kidney function may be preserved once the intravenous loading dose and oral maintenance regimen of Theophylline are given prophylactically. Need to use cautiously in patient with severe kidney dysfunction.

Alcohol Not Advisable

Adjustment of Theophylline to a higher dose may be required due to the consumption of alcohol may increase its clearance.

Pregnancy Not Safe

No sufficient study conducted on human pregnancy in the first trimester concerning the use of Theophylline. However, Theophylline should only be taken if benefits outweight harms in the mother during the second and third trimesters as Theophylline has sympathomimetic effects in the foetus.

Driving Not advisable

Do not drive unless you are feeling well. Theophylline may cause side effects such as dizziness, headches, nausea or palpitations, all of which could affect the ability to concentrate and drive.

Liver Use With Care

Dose adjustment may be required in a patient with chronic liver disease since Theophylline is metabolized in the liver.

Lactation Not Advisable

Since Theophylline is excreted in breast milk, the therapeutic dose of it should be kept low. The baby has to be monitored for any effects of Theophylline. Breastfeeding must be discontinued once a higher dose of Theophylline is needed.

Frequently Asked Questions