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).
Today most blue pigments and dyes are made by a chemical process. 1  Pure blue, also known as high blue, is not mixed with any other colours. 2  Navy blue, here worn by Admiral Horatio Nelson, is the darkest shade of pure blue. 3  Sky blue or pale azure, mid-way on the RBG colour wheel between blue and cyan.