Pet owners often seek solutions to calm their anxious or hyperactive dogs—especially after surgery or during stressful events like thunderstorms or fireworks. One medication commonly prescribed by vets is Trazodone. But is a 200mg dose safe for dogs? Let’s break it down.
What Is Trazodone?
Trazodone is a prescription antidepressant that’s part of a drug class called serotonin antagonist and reuptake inhibitors (SARIs). Originally developed for humans, it’s frequently used in veterinary medicine as an off-label treatment for anxiety, stress, and behavioral issues in dogs.
How Trazodone Works
Trazodone helps increase serotonin levels in the brain, promoting a sense of calm and well-being. In dogs, this can translate to:
- Reduced anxiety
- Less hyperactivity
- Better post-surgery recovery behavior
- Lower aggression or fearfulness
Is 200mg of Trazodone Safe for Dogs?
It Depends on the Dog’s Size and Health
A 200mg dose of Trazodone can be appropriate—but only under veterinary supervision. The correct dosage depends on:
- Dog’s weight
- Age and overall health
- Purpose of treatment
- Other medications being taken
📌 Rule of Thumb: The general dosage guideline is 2.5–7 mg per pound of body weight, given every 8 to 24 hours. So for a 50-pound dog, 200mg could be within the safe range. For a small dog, it could be dangerous.
Always consult your vet before giving your dog any dosage of Trazodone. Self-medicating can lead to serious health risks.
When Is Trazodone Prescribed for Dogs?
Veterinarians may prescribe Trazodone for a variety of situations, such as:
1. Anxiety and Stress
Dogs with separation anxiety, noise phobias, or general nervousness may benefit from short- or long-term use.
2. Post-Surgical Recovery
Trazodone helps keep dogs calm during recovery, preventing them from overexerting or injuring themselves.
3. Veterinary Visits or Travel
If your dog experiences extreme anxiety during car rides or vet appointments, a pre-visit dose of Trazodone can help.
Side Effects of Trazodone in Dogs
Like any medication, Trazodone can cause side effects. While many dogs tolerate it well, monitor your pet closely, especially when starting a new dose.
Common Side Effects:
- Sedation or drowsiness
- Lethargy
- Gastrointestinal upset (vomiting or diarrhea)
- Panting or restlessness
Serious Side Effects (Seek Immediate Vet Attention):
- Tremors or seizures
- Excessive sedation or collapse
- Agitation or aggression
- Irregular heartbeat
Tip: Start with a lower dose and observe your dog’s reaction before moving to a higher amount like 200mg.
How to Administer Trazodone Safely
To ensure your dog’s safety and comfort:
- Follow vet instructions precisely
- Give with food to reduce stomach upset
- Avoid combining with other sedatives unless your vet advises
- Keep a journal of side effects and behavioral changes
Special Considerations:
- Dogs with liver, kidney, or heart conditions may need adjusted doses.
- Trazodone should not be mixed with MAO inhibitors or certain other antidepressants.
What If You Accidentally Gave Too Much?
If your dog accidentally ingests more than the prescribed amount, contact your vet or an emergency poison control center immediately.
📞 ASPCA Animal Poison Control: 888-426-4435
Signs of overdose may include:
- Vomiting
- Disorientation
- Loss of coordination
- Seizures
- Collapse
Time is critical, so don’t delay seeking help.
Alternatives to Trazodone
If Trazodone isn’t suitable for your dog, there are other options to explore:
- Natural calming supplements (CBD, L-theanine, valerian root)
- Behavioral training or desensitization techniques
- Other medications like fluoxetine or alprazolam (vet-prescribed)
- Pheromone diffusers or anxiety wraps
Final Thoughts: Is 200mg Trazodone the Right Choice?
Trazodone can be an effective, vet-approved way to manage your dog’s anxiety or help with post-surgical recovery—but the dosage must be carefully tailored to your dog’s needs. While 200mg is safe for some larger dogs, it could be too much for others.
✅ Key Takeaways:
- Trazodone is commonly used for dog anxiety and post-op recovery.
- 200mg may be safe for larger dogs but not small breeds.
- Always consult your veterinarian before starting or changing the dose.
- Watch for side effects and monitor your dog closely.

Abraham Finley is a health writer passionate about providing clear, reliable information on Trazodone and mental health. He created TrazodoneSUC.com to help readers make informed decisions about their well-being.