The rush from freebasing is much more intense than snorting the same amount of cocaine nasally, but the effects do not last as long. According to police, the price of a dose of cocaine that would give a user a 20 minute high will buy enough meth to keep a user buzzed for a day or two. Contrary to earlier belief high dose use of cocaine can be detected as long as 10 to 22 days after last use. The history of heroin dates back as far or farther than the ancient Egyptians. Records indicate that opium was used by the ancient Egyptians, Greeks and Romans. The poppy even appears on Egyptian art dating back 6,000 years. Opium was imported to China around 800 A.D. By the 1600s, opium smoking was widespread throughout China. In 1680, a famous English physician named Thomas Syndenham introduced opium to the medical field. | 
