It relaxes the lower esophageal sphincter and so can increase reflux (heartburn).
It can cause side effects such as nausea, insomnia, anxiety and tremor.
It can trigger abnormal heart rhythms.
Its blood level should be monitored.
[Having said all that it is an effective drug that is usually well tolerated and is probably not being used as much as it should be anymore].
theophylline
Aminophylline dose * 0.8 = Theophylline dose
Herbert Weinfeld has written: 'A study of metabolism of caffeine and theophylline' -- subject(s): Caffeine, Theophylline, Metabolism
Yes, theophylline and caffeine (and the closely related theobromine) are drugs. Relatively mild ones, but they do act as stimulants.
shunga
You can drink grape juice when taking theophylline. What you should not drink is grapefruit juice. This is because grapefruit juice can decreae the effects of taking theophylline. However, at this time, it has not been determined how serious this effect is.
medical and medication
Asthma patients using theophylline may increase the amount of theophylline absorbed, perhaps leading to toxicity. Consult with a medical practitioner.
The chief methylxanthine drug is theophylline
10-20 mg/dL
base
80198