Ice and base are methamphetamine, part of the amphetamine family of drugs which also includes speed. The difference between ice, base and speed is that ice is the most pure form, followed by base then speed. The 'high' experienced from ice and base is much more intense, and with intense reactions come powerful responses including comedown, the potential for dependence (addiction) and chronic physical and mental problems.
Ice is known as a variety of other names, including: crystal meth, meth, crystal, shabu, batu, d-meth, tina and glass. Base is also known as: speed dexedrine, dexies, dex, shad, go-ee, glass, tina, paste, oxblood, shabu, yabba and crank.