Opana should be used with caution when it is prescribed to the elderly, as these individuals are likely to be much more sensitive to the drug's effects.
LSD use has been known to reveal underlying psychosis or aggravate anxiety or depression in some individuals.
When someone is high on LSD, sensations of gravity may be altered, ranging from feeling weighted down, to feeling light and floating.
Once someone has tried crack cocaine they simply cannot predict or control the extent to which they will continue using the drug.