Trazodone is an antidepressant medication commonly prescribed to treat major depressive disorder, anxiety, and insomnia. It’s also used off-label for conditions such as post-traumatic stress disorder (PTSD) and other mental health concerns. While effective in many cases, taking too much trazodone can lead to serious health consequences, including overdose.
In this article, you will learn:
- What happens when someone overdoses on trazodone?
- What symptoms to look out for
- What steps should be taken if an overdose occurs?
What Is Trazodone?
Trazodone is an antidepressant classified as a serotonin antagonist and reuptake inhibitor (SARI). Unlike selective serotonin reuptake inhibitors (SSRIs) or tricyclic antidepressants, trazodone works by balancing serotonin levels in the brain while also blocking certain serotonin receptors.[1]
Because of its sedating effects at lower doses, it’s frequently prescribed to treat insomnia and trouble sleeping, especially in patients also dealing with depression or anxiety. Trazodone is not considered a first-line medication, but it’s commonly used due to its dual-purpose nature and relatively mild side effect profile when used correctly.
Can You Overdose on Trazodone?
Yes. Overdosing on trazodone is not only possible—it can be fatal, especially when combined with other substances or in individuals with underlying health conditions. According to the Wiley Online Library, while fatal overdoses are relatively rare compared to other antidepressants, the risk becomes significant when trazodone is mixed with central nervous system depressants, other medications, or alcohol.[2]
The amount of trazodone that may result in an overdose varies from person to person. Factors such as a person’s age, weight, overall health, mental illness history, and other drugs being taken simultaneously all contribute to the risk. You are also at a higher risk of overdosing if you attempt to abuse trazodone by snorting it.
How Much Trazodone Is Too Much?
There’s no one-size-fits-all answer, but in general:[2]
- Typical therapeutic doses range from 150 mg to 400 mg per day, usually in divided doses.
- Doses above 600 mg per day are considered high and are rarely prescribed.
- Toxic effects have been observed in individuals taking over 1,000 mg of trazodone.
- Fatal overdoses have been reported at doses exceeding 2,000–3,000 mg, particularly when combined with multiple substances or other antidepressants.
However, even lower doses can pose risks, especially in young adults or individuals with existing heart conditions, seizure disorders, or substance use disorders.
Signs and Symptoms of a Trazodone Overdose
Recognizing the signs of a trazodone overdose is crucial for prompt medical intervention. Symptoms often include:[3]
- Severe drowsiness or sedation
- Vomiting
- Rapid or irregular heartbeat
- Low blood pressure (hypotension)
- Trouble breathing
- Seizures
- Confusion or disorientation
- Coma
- Chest pain
- Life-threatening symptoms, especially when taken with central nervous system depressants or alcohol
In some cases, serotonin syndrome may develop. This is a potentially life-threatening condition characterized by:[4]
- Agitation
- Sweating
- Tremors
- Muscle rigidity
- High body temperature
Serotonin syndrome is more common when trazodone is combined with other serotonergic drugs, including SSRIs, tricyclic antidepressants, or certain migraine medications.
What to Do If a Trazodone Overdose Occurs
If you suspect someone has taken too much trazodone, this is a medical emergency. Do not wait for symptoms to worsen. Immediate steps include:
- Call 911 or your country’s emergency services.
- Contact Poison Control or the local poison control center (in the U.S., call 1-800-222-1222).
- Keep the person awake and upright, if possible.
- Do not induce vomiting unless instructed by a medical professional.
- Provide any information about the dose, timing, and other substances involved.
Early medical intervention can make a significant difference in outcomes, especially when emergency services can stabilize vital signs and administer appropriate medical treatment.
Who Is at Risk for Trazodone Overdose?
Trazodone overdose can affect anyone, but the highest risk groups include:
- Individuals with a history of mental illness or suicidal thoughts
- People abusing trazodone for its sedative effects
- Those with drug addiction or substance abuse histories
- People taking other medications or substances that depress the central nervous system
- Patients with depression or anxiety who have not had proper medication monitoring
To avoid trazodone overdose, only take it as prescribed. Taking a higher dose than your doctor recommends puts you at a high risk of experiencing toxic effects.
Is Trazodone Addictive?
Unlike benzodiazepines or opioids, trazodone is not considered highly addictive, but trazodone addiction can still occur, particularly in individuals who misuse the drug for its calming effects.
Repeated misuse can lead to tolerance, dependence, and antidepressant withdrawal symptoms such as:
- Insomnia
- Anxiety
- Irritability
- Headaches
- Nausea
These symptoms typically appear when the medication is stopped abruptly after prolonged use, especially without medical supervision. It is always advised to dose gradually, especially when starting or stopping trazodone.
Treatment Options for Trazodone Overdose and Abuse
If you or someone you know is struggling with trazodone abuse or has experienced an overdose, there are several treatment options available:
- Emergency department care for acute overdose symptoms
- Inpatient detox under medical supervision
- Outpatient or inpatient substance abuse treatment programs
- Therapy and psychiatric support for underlying conditions such as depression, anxiety, or PTSD
- Medication-assisted treatment and monitoring for co-occurring drug abuse
Addiction treatment tailored to individual needs is key to reducing relapse risk and supporting long-term recovery.
Preventing Overdose: Practical Steps
If you’re taking trazodone or caring for someone who is:
- Take the medication exactly as prescribed—do not adjust the dosage without your doctor’s approval.
- Avoid mixing trazodone with alcohol or any other substances, especially sedatives or over-the-counter sleep aids.
- Monitor for changes in mood or suicidal thoughts, especially during the first few weeks of treatment or after a dose change.
- Store the medication safely, away from children and individuals with a history of drug abuse.
- Attend regular check-ins with your medical professional to assess effectiveness and safety.
Get Connected to Treatment for Trazodone Abuse
Trazodone is an effective medication when used responsibly to treat major depressive disorder, insomnia, and other mental health conditions. But like any drug, especially one that affects the central nervous system, there are risks involved.
Overdosing on trazodone can lead to life-threatening symptoms and permanent damage. If you or someone you know is experiencing symptoms, don’t hesitate—contact poison control, call for emergency services, and seek medical help immediately.
For those facing ongoing challenges with trazodone abuse or other forms of substance abuse, help is available. At PAX Memphis, we can connect you with a highly rated trazodone abuse rehab program. Contact us today to get started.
FAQ: Trazodone Overdose and Safety
1. Can trazodone interact with herbal supplements or over-the-counter sleep aids?
Yes. Trazodone can interact with natural supplements like valerian root, melatonin, or St. John’s Wort, and with over-the-counter sleep aids containing diphenhydramine or doxylamine. These combinations can increase sedation and elevate the risk of central nervous system depression or serotonin syndrome. Always consult a healthcare provider before combining medications or supplements.
2. How long does trazodone stay in your system after stopping it?
Trazodone has a half-life of approximately 5 to 13 hours, but it can take up to two days to be mostly eliminated from the body. However, its effects—especially sedative—can linger longer in individuals with slower metabolism, older age, or impaired liver function.
3. Is it safe to take trazodone long-term for sleep?
Trazodone is often used off-label for insomnia, but long-term use may lead to tolerance, reduced effectiveness, or unwanted side effects like daytime drowsiness. It’s important to regularly reassess the need for trazodone with a healthcare provider, especially if it’s being used solely as a sleep aid.
4. What should I do if I miss a dose of trazodone?
If you miss a dose, take it as soon as you remember—unless it’s close to the time of your next scheduled dose. In that case, skip the missed dose and continue as normal. Do not double up to make up for a missed dose, as this increases the risk of side effects or overdose.
5. Are there any early warning signs that I might be developing a dependence on trazodone?
While trazodone isn’t considered highly addictive, warning signs of problematic use include increasing your dose without approval, using it for non-medical reasons (like recreational sedation), and experiencing cravings or anxiety when not taking it. If you notice these signs, speak to a medical professional promptly.
References:
- Medline Plus: Trazodone
- Wiley Online Library: Management of Trazodone Overdose with Severe Hypotension
- Up to Date: Selective serotonin reuptake inhibitor poisoning
- Sage Journals: Serotonin Syndrome: Pathophysiology, Clinical Features, Management, and Potential Future Directions