Symptoms. The most common symptom is pain, although not all of these tumors produce symptoms. Pain is typically the result of a large hemangioma involving the entire vertebra. The tumor may also have caused the bone to collapse and become shorter.
4. VIMPAT is a federally controlled substance (C-V) because it can be abused or lead to drug dependence. Keep your VIMPAT in a safe place, to protect it from theft. Never give your VIMPAT to anyone else, because it may harm them.
Ritalin: A Controlled Substance. Ritalin Â® (methylphenidate hydrochloride) is a prescription medication that is classified as a controlled substance. Longer-acting forms of the drug (Ritalin SR Â® and Ritalin LA Â®) are also available (and are also controlled substances). Controlled substances are medications or drugs that are habit-forming and, therefore, likely to be abused. Certain prescription medications and most illegal street drugs are controlled substances.