Sertraline should not be taken with or within two weeks of taking monoamine oxidase inhibitors (MAOIs). These include phenelzine (NardilÂ®), tranylcypromine (ParnateÂ®), isocarboxazid (MarplanÂ®), rasagiline (AzilectÂ®), and selegiline (EmsamÂ®).
Pure caffeine is a white, tasteless substance that makes up as much as 5% of. the weight of tea leaves. By structure, caffeine is closely related to the purine bases, guanine and adenine, found in deoxyribonucleic acids (DNA).
There is no relationship between the color of tea and caffeine. Caffeine content in different types of teas: Black tea contains the highest caffeine content of around 40 to 75 mg per 8 ounce cup. Oolong teas contain approximately 45 mg of caffeine per 8 ounces cup. Green tea contains only 15 to 30 mg of caffeine content per 8 ounces cup.