In recent years, crack pipes have been modified to include THC. These pipes are not manufactured to such a high standard as a crack pipe, and will reach temperatures much higher, usually around 100 °C (212 °F). In such a high temperature, the THC quickly evaporates.
Many of these pipes have a straight glow holder which is a cheaper substitute for a quartz piece. The glow material is similar to the quartz material, but is made with cheaper methods, so it does not hold heat as well. However, since it can be purchased anywhere, many people have it.
Users also may chronically develop addictive symptoms or tolerance to the drug though unlike heroin, stopping longer-term use does not necessarily lead to withdrawal symptoms; chronic users may experience headaches, insomnia, and/or confusion. Amphetamines overuse can lead to irregular heart rhythms and muscle spasms, or "cramp-like" symptoms. Physical effects of chronic drug use include a weakened immune system, loss of memory and reflexes, mood changes, and behavioral problems. Crack cocaine use may also cause kidney damage, heart problems, and diabetes. d2c66b5586