Tea contains caffeine, theobromine, and theophylline ... three related xanthine derivatives with some drug-like qualities.
Herbert Weinfeld has written: 'A study of metabolism of caffeine and theophylline' -- subject(s): Caffeine, Theophylline, Metabolism
Main drug found in tea is xantine named theophylline, there is mo such thing as "teina"SP.
The chief methylxanthine drug is theophylline
Do not take ipriflavone with theophylline, azfirlukast, antipsychotics, caffeine, celecoxib, cyclobenzaprine, nifedipine, anti-inflammatories, pain relivers, tacrine, tamoxifen, warfarin.
A xanthin, also spelled xanthine, is one of a group of alkaloids which include caffeine, theophylline, and theobromine, a precursor of uric acid.
Asthma patients using theophylline may increase the amount of theophylline absorbed, perhaps leading to toxicity. Consult with a medical practitioner.
Theophylline is a medication used to treat asthma and other lung conditions by relaxing the muscles in the airways and decreasing inflammation. It helps improve breathing by opening up the air passages in the lungs.
caffeine - coffee, cola nuts. nicotine - tobacco leaves. theobromine - cocoa bean. theophylline - tea
caffeine - coffee, cola nuts. nicotine - tobacco leaves. theobromine - cocoa bean. theophylline - tea
Herbal tea may still contain caffeine, which is a drug
No, it is more or less found in tea (in drinkable brew: 1 mg/L) and in cocoa beans up to 4 mg/g in dry beans.However it is one of the xanthinic breakdown products of caffeine (from coffee) metabolism in the liver (cf. Related links just below this question)