Theo-24 CR
Asthma, Chronic Obstructive Pulmonary Disease
400mg
Theo-24 CR is theophylline 400mg in a modified-release capsule for asthma and COPD, a methylxanthine that relaxes the bronchial muscle.
From$0.60/ tabletView
Theophylline
Theophylline is a bronchodilator sometimes used in selected asthma or chronic obstructive pulmonary disease plans. It is not a rescue medicine for a sudden severe attack.
Uniphyl CR
Asthma, Chronic Obstructive Pulmonary Disease
400mg
Uniphyl CR is theophylline 400mg as a modified-release tablet rather than a capsule, for asthma and COPD. It inhibits the phosphodiesterase enzymes.
From$0.57/ tabletView
Theo-24 SR
Asthma, Chronic Obstructive Pulmonary Disease
200mg
Theo-24 SR is theophylline at the lower 200mg modified-release strength for asthma and COPD, a xanthine that raises cyclic AMP in the airway.
From$1.33/ tabletView
Key points
- Theophylline has a narrow safe concentration range and may require blood-level monitoring.
- Fever, liver disease, smoking changes and many common medicines can rapidly alter exposure.
- Repeated vomiting, a fast or irregular heartbeat, severe agitation or a seizure needs urgent care.
Listings are for comparison only. Suitability and supply depend on clinician and pharmacy checks, stock, destination rules and prescription requirements.
How it works
Theophylline inhibits phosphodiesterase and blocks adenosine receptors, relaxing airway smooth muscle and affecting breathing drive and inflammation.
Important safety checks
Heart-rhythm disease, epilepsy, liver disease, fever and all medicines require review. Antibiotics, seizure medicines and smoking can alter levels. Modified-release products are not automatically interchangeable. Do not take extra medicine for worsening breathing.
When to seek urgent care
Seek urgent help for repeated vomiting, marked tremor or agitation, a sustained fast or irregular heartbeat, fainting, confusion or a seizure. Severe breathlessness or poor response to the respiratory action plan needs emergency care.