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).
1 NO tea from the plant camellia sinensis is caffeine-free; even decaffeinated teas have a small amount of caffeine. 2  When brewed at our recommended serving size, any variety of tea (black, green, oolong, white and pu-erh) will have less caffeine than coffee.