- In pre-approval clinical studies with triazolam, the most common side effect was drowsiness, occurring in up to 14 percent of participants in some studies.
- Other common triazolam side effects include coordination difficulty, dizziness, headaches, lightheadedness, nausea and nervousness.
- Because people can easily become dependent on triazolam, they may begin taking too much, which can cause excessive sedation, confusion and impaired physical and mental capacity. Daily withdrawal symptoms may begin within 2 weeks, appearing as feelings of anxiety during the day.
- People who have been diagnosed with depression may not be able to use triazolam, particularly if a suicidal risk has been determined or if the individual has a history of drug dependence.
- Some people taking triazolam, particularly in higher dosages or for long periods of time, may experience ongoing confusion, hallucinations, irritability and worsening of depression.
- Triazolam can cause anaphylaxis, a severe allergic reaction that prevents breathing. Other signs of an allergic reaction include hives or a rash, hoarseness, nausea or vomiting, difficulty breathing or swallowing, or swelling of hands, face, mouth and throat.
