Although the anaconda is a thicker, heavier snake, some pythons are the world's longest snakes. The reticulated python of Southeast Asia has an average length of up to 4 to 6 meters (13 to 21 feet), the largest measuring 9.7 meters (nearly 32 feet).
One of the most common drugs used in the labour ward is pethidine, a synthetic, addictive, narcotic drug that is similar to morphine. In Britain it is also known as meperidine, and in America it is known as Demerol.
Pain medications - narcotics. Narcotics are also called opioid pain relievers. They are used only for pain that is severe and is not helped by other types of painkillers. When used carefully and under a health care provider's direct care, these drugs can be effective at reducing pain. Narcotics work by binding to receptors in the brain, which blocks the feeling of pain.