1 Shock absorbers or struts can cost $25-$350 or more each, depending on the make and model of vehicle and the quality of the part.2  Although it could cost as much as $1,400 for a set of four, most do-it-yourselfers spend an average of $150-$250 to replace four shocks/struts. Some vehicles require a wheel alignment after the shock absorbers or struts are replaced, at a typical cost of $20-$400.
An opiate is a substance derived from the poppy plant (which contains opium). Opiates are sometimes called natural since the active ingredient molecules are made by nature, not manufactured by chemical synthesis. Common opiates include morphine and codeine, both made directly from poppy plants. An opioid is a substance (molecule) that is synthetic or partly synthetic, meaning the active ingredients (molecules) are manufactured via chemical synthesis.
Opioid analgesics (sometimes called narcotics) are effective for many different types of pain. Usually, they are the strongest analgesics. Opioids are chemically related to morphine, a natural substance extracted from poppies. Some opioids are extracted from other plants, and other opioids are produced in a laboratory.