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.
Bupivacaine is a potent agent capable of producing prolonged anesthesia. Its long duration of action plus its tendency to provide more sensory than motor block has made it a popular drug for providing prolonged analgesia during labor or during the postoperative period. Bupivacaine, like lidocaine, can be used for infiltration anesthesia.