Duration

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The term duration refers to the length of time over which the subjective effects of a psychoactive compound will manifest themselves. This concept can be further broken down into an onset, a peak, an offset and residue after effects. Depending upon the substance consumed, each of these occur across different durations of time but can be categorized into 5 separate categories. These are defined and listed below.

See also

• Responsible use
• Routes of Administration
• Shulgin Rating System