I then put the front tire on the rear, and a new tire on the front. On my roadie (700x23 Michelin Carbons) or my commuter (700x28 Specialized Armadillos), a brand new tire on the rear usually gets me about 1500-2000 miles. A 'front' tire on the rear gets a few hundred miles less.
Morphine is an opioid pain medication. An opioid is sometimes called a narcotic. Morphine is used to treat moderate to severe pain. Short-acting formulations are taken as needed for pain. The extended-release form of this medicine is for around-the-clock treatment of pain. This form of morphine is not for use on an as-needed basis for pain.
Morphine - the first alkaloid. Raw opium contains some 20 alkaloid substances, one of which is morphine, in a typical yield of 10%. Morphine was first isolated in 1805 by Friedrich SertÃ¼rner, an apothecary's assistant in Paderborn, Germany, however its basic structure was not correctly determined until 120 years later.