Prodrug not its intended target. This reduces adverse or unintended effects of a drug, especially important in treatments like chemotherapy, which can have severe unintended and undesirable side effects. Many herbal extracts historically used in medicine contain glycosides (sugar derivatives) of the active agent, which are hydrolyzed in the intestines to release the active and more bioavailable aglycone. For example, salicin is a β-D-glucopyranoside that is cleaved by esterases to release salicylic acid. Aspirin, acetylsalicylic acid, first made by Felix Hoffmann at Bayer in 1897, is a synthetic prodrug of salicylic acid. However, in other cases, such as codeine and morphine,
Should Have Known Better shroud into a tender lyric about shoving aside his fear, discovering an oasis of perspective when he looks to his brother’s newborn daughter and sees his mother in her face. When he sings 'nothing can be changed,' he doesn’t sound resigned, but ready to look forward. It’s the dawn at the end of a long night, a prayer that past traumas might be healed by a beautiful present." Should Have Known Better "Should Have Known Better" is a song by American singer-songwriter and multi-instrumentalist Sufjan Stevens. It is the second track and second single from his seventh studio album, "Carrie