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Published on: 9/24/2026
Common side effects of taking trazodone at bedtime include next-morning drowsiness or "hangover" grogginess, dizziness or lightheadedness when standing, dry mouth, blurred vision, headache, nausea, and vivid or unsettling dreams, while less common but serious effects include irregular heartbeat, fainting, prolonged erection (priapism), serotonin syndrome, and worsening mood or suicidal thoughts, especially in younger users. Timing, dose, alcohol use, other medications, and your own health history all change which effects you are likely to feel and how long they last, so there are several important factors to consider below before assuming your symptoms are harmless or expected. Some reactions fade within the first one to two weeks, while others signal that the dose or the medication itself needs to be reassessed, and the details below explain how to tell those situations apart. If your nighttime grogginess, heart symptoms, or mood changes feel out of proportion, that distinction matters more than the general side effect list. Because similar nighttime symptoms can also come from sleep disorders, blood pressure changes, or other medications, it helps to check your specific pattern rather than guess: take a free, instant, online symptom check to better understand what may be driving how you feel and what steps make sense next.
Last reviewed for medical accuracy: 09/24/2026
Many people use trazodone for sleeping issues, especially when insomnia disrupts daily life. Originally developed as an antidepressant, trazodone is prescribed off-label at lower doses to help with sleep. Understanding its potential side effects can help you make informed decisions and use the medication safely.
Trazodone works by balancing certain brain chemicals (serotonin) and blocking histamine and alpha-adrenergic receptors. At lower doses (typically 25–100 mg), its sedating effects often outweigh its antidepressant effects, making it a popular choice for sleep troubles. Always follow your doctor’s instructions for dosage and timing—usually 30–60 minutes before bedtime.
Most people tolerate trazodone well, but some mild to moderate side effects may occur, especially during the first few days. These include:
Some people experience additional side effects that are less frequent but worth noting:
While uncommon, these side effects require prompt medical attention:
If you experience any of the following, seek medical advice without delay:
For non-urgent concerns—like morning grogginess, mild headaches, or dry mouth—you can start with a free, online symptom check, using the doctor approved Ubie Symptom Checker to help decide if you need to speak with a healthcare professional.
Always discuss any new or worsening symptoms with your doctor. Bring your sleep diary and a list of all medications and supplements. Together, you can decide whether to adjust your dose, switch medications, or add lifestyle measures.
If you experience any life-threatening or serious symptoms, call emergency services or go to the nearest emergency department immediately. For less urgent issues, schedule an appointment with your healthcare provider or use telemedicine options where available.
By staying informed and proactive, you can maximize the benefits of trazodone while minimizing risks. If in doubt, speak to a doctor—your safety and peace of mind come first.
(References)
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* Gerolymos C, Barazer R, Yon DK, Loundou A, Boyer L, Fond G. Drug Efficacy in the Treatment of Antipsychotic-Induced Akathisia: A Systematic Review and Network Meta-Analysis. JAMA Netw Open. 2024 Mar 4;7(3):e241527. doi: 10.1001/jamanetworkopen.2024.1527. 2024 Mar 4. PMID: 38451521; PMCID: PMC10921255.
* Kokkali M, Pinioti E, Lappas AS, Christodoulou N, Samara MT. Effects of Trazodone on Sleep: A Systematic Review and Meta-analysis. CNS Drugs. 2024 Oct;38(10):753-769. doi: 10.1007/s40263-024-01110-2. 2024 Aug 9. PMID: 39123094.
* Chrobak AA, Woroń J, Siwek M. Green rush and red warnings: Retrospective chart review of adverse events of interactions between cannabinoids and psychotropic drugs. Front Pharmacol. 2024;15:1500312. doi: 10.3389/fphar.2024.1500312. 2024 Oct 22. PMID: 39502532; PMCID: PMC11534596.
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