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).
Chlorophyll is a sticky liquid and may be released through grinding or crushing tea leaves. This can cause the green hue of the caffeine to intensify. Without crushing or grinding, the green color of the leaves is usually more mild. The shade of tea leaves also depends on the level of impurity.