Allergies Home > Clarinex-D and Insomnia

There are common side effects with Clarinex-D, and insomnia is one of the most common. Suggestions to combat insomnia include engaging in a relaxing pre-sleep ritual and avoiding exercise, large meals, or caffeine before bedtime. If you're taking Clarinex-D and insomnia persists even after you've followed these suggestions, tell your doctor. He or she can prescribe other treatments, including other allergy medications.

An Overview of Clarinex-D and Insomnia

There are several side effects that can occur with Clarinex-D® (desloratadine and pseudoephedrine). One possible side effect is insomnia. In clinical studies, insomnia was the most common side effect seen with Clarinex-D 12 Hour®, occurring in 10 percent of people. Insomnia occurred in 5 percent of people taking Clarinex-D 24 Hour®.

What Is Insomnia?

People with insomnia have one or more of the following symptoms:
  • Difficulty falling asleep
  • Waking up often during the night and having trouble going back to sleep
  • Waking up too early in the morning
  • Unrefreshing sleep.

Clarinex-D and Insomnia: Suggestions

Some people taking Clarinex-D find that improving their sleep habits can be an effective insomnia cure. Tips for better sleep include:
  • Keeping a regular sleep-wake cycle. Try to go to bed and wake up at the same time every day.
  • Avoid caffeine, alcohol, and nicotine in the four to six hours before bedtime.
  • Don't exercise within two hours of bedtime. Exercising five or six hours before bedtime may help you sleep more soundly.
  • Don't eat large meals within two hours of bedtime.
  • Don't nap later than 3 p.m.
  • Sleep in a dark, quiet room with a comfortable temperature.
  • If you can't fall asleep within 20 minutes, do a quiet activity somewhere else and return to bed when you're sleepy.
  • Wind down in the 30 minutes before bedtime with a relaxing pre-sleep ritual, such as a warm bath, soft music, or reading.
(Click Good Sleep Habits for more suggestions.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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