Mouth ulcers can happen as one side effect of using meth. Treatment can help, but these sores may also begin to heal when you stop taking meth. Share on Pinterest Daniel Kaesler /Getty Images ...
Methamphetamine, or meth, is a powerful stimulant that can make you feel more awake and active. Scientists in the early 20th century developed it in an effort to improve the medication amphetamine.
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