Health Library
The Health Library is a collection of health and wellness resources created for learning and accessibility. Select a topic below for related health information or search for a topic in the search bar for more information on other medical conditions.
Decreased Alertness
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Many prescription and nonprescription medicines can cause confusion or make you less alert. A few examples are: Antidepressants. Antihistamines. Opioid pain medicines. Sedatives and tranquilizers. Medicines for bladder control problems (anticholinergics). Contact your doctor before you stop taking or reduce the...
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Many health problems cause confusion or decreased alertness. It is not unusual for a person who is sick to be sleepy or confused when he or she wakes up. But extreme sleepiness may be a symptom of a more serious health problem. Confusion may range from mild to severe. Symptoms of confusion may include...