Several classes of medications can also cause insomnia. Table 2.2
shows the medications and stimulants that may cause insomnia, with
percentage of patients reporting insomnia as a side-effect, when available.
The wide variety of insomnia-causing medications indicates that
it is always a good idea to review all medications a patient is taking,
what the side-effects of those medications are, and when they are taking
them (ie, late afternoon administration of stimulating medications is
more likely to disrupt sleep than an early morning administration)