10 Common Anxiety Meds for Dogs
Dogs can experience anxiety that affects their overall well-being. A little anxiety is normal—especially when they encounter something new or face a change in routine. But if your dog can’t settle back down, their anxiety worsens over time, or they begin harming themselves, your veterinarian may recommend anxiety medication to help manage symptoms.
Always consult your veterinarian before giving your dog any medication. Your vet will determine the appropriate dosage, monitor for side effects, and guide you on combining medication with behavior support and environmental adjustments.
What Are Anti-Anxiety Meds for Dogs?
Anti-anxiety medications for dogs are prescription treatments designed to help your dog feel calmer and more relaxed. This makes it easier for them to learn from behavior training and respond positively to daily routines. These medications work by influencing brain chemicals linked to stress, mood, and emotional regulation.
When Do Vets Prescribe Anxiety Meds for Dogs?
Veterinarians typically prescribe anti-anxiety medications alongside behavior modification plans when:
- Your dog injures themselves due to anxious behaviors (e.g., chewing paws, scratching walls)
- Your dog damages household items when left alone
- Your dog experiences significant, persistent distress that impacts their quality of life
- There’s concern the dog may no longer be able to safely remain in the home

10 Common Anxiety Meds for Dogs
The following medications reflect common veterinary prescribing practices—starting with FDA-approved options for dogs, followed by other widely used, off-label treatments. All require a prescription and should only be administered under direct veterinary supervision.
1. Clomicalm (Clomipramine)
Generally used to treat: Separation anxiety, noise phobia, repetitive behaviors
How it works: A tricyclic antidepressant (TCA) that increases levels of serotonin and norepinephrine—neurotransmitters involved in mood regulation.
Potential side effects: Excessive sleepiness, vomiting, diarrhea, increased heart rate, dry mouth, decreased appetite
2. Reconcile (Fluoxetine)
Generally used to treat: Separation anxiety, fear-based behaviors, compulsive actions, and impulsivity
How it works: A selective serotonin reuptake inhibitor (SSRI) that boosts serotonin availability in the brain to support balanced mood and behavior.
Potential side effects: Loss of appetite, lethargy, vomiting, diarrhea, muscle tremors, restlessness, excessive whining
3. Sileo (Dexmedetomidine)
Generally used to treat: Situational anxiety, especially noise phobias like thunderstorms or fireworks
How it works: An alpha-2-adrenergic agonist that gently reduces activity in key brain regions responsible for stress responses—leading to calmness without heavy sedation.
Potential side effects: Grogginess, vomiting, weakness, loss of balance, mild sedation, head tremor, inappropriate urination
4. Trazodone
Generally used to treat: Situational anxiety, separation anxiety, and noise phobia
How it works: A serotonin antagonist and reuptake inhibitor (SARI) that raises serotonin levels while blocking specific receptors to ease anxiety.
Potential side effects: Vomiting, diarrhea, nausea
5. Gabapentin
Generally used to treat: Situational anxiety and noise-related stress
How it works: Originally developed for seizure control, gabapentin helps reduce overactivity in neural pathways associated with anxiety.
Potential side effects: Grogginess, loss of balance
6. Alprazolam
Generally used to treat: Acute situational anxiety—such as fear of fireworks, thunderstorms, travel, or veterinary visits
How it works: A benzodiazepine that enhances the effect of calming neurotransmitters (like GABA) to quickly reduce panic and fear.
Potential side effects: Lethargy, sedation, incoordination, increased appetite
7. Paroxetine
Generally used to treat: Generalized anxiety and compulsive disorders
How it works: An SSRI that elevates serotonin levels to improve emotional regulation and reduce obsessive or repetitive behaviors.
Potential side effects: Lethargy, reduced appetite, diarrhea, vomiting, hyperactivity, constipation
8. Sertraline
Generally used to treat: Separation anxiety, generalized anxiety, thunderstorm phobia, and compulsive behavior
How it works: Another SSRI that supports serotonin signaling to lower stress sensitivity and promote resilience.
Potential side effects: Decreased appetite, vomiting, diarrhea, irritability, panting
9. Amitriptyline
Generally used to treat: Separation anxiety, reactivity, and generalized anxiety
How it works: A tricyclic antidepressant (TCA) that increases both serotonin and norepinephrine to stabilize mood and reduce nervous system hyperarousal.
Potential side effects: Constipation, lethargy, excessive sleepiness, urinary retention, vomiting, diarrhea
10. Diazepam
Generally used to treat: Acute panic episodes, situational anxiety, and noise phobia
How it works: A benzodiazepine that slows and stabilizes nervous system activity—producing rapid calming effects.
Potential side effects: Grogginess, loss of balance, paradoxical excitement (rare), increased appetite

What Can I Give My Dog for Anxiety Besides Prescription Meds?
In addition to prescription medications, many veterinarians recommend supportive, non-pharmaceutical strategies—often used alongside medical treatment for best results. These include:
- Natural calming supplements: Clinically studied options like Zylkene or Composure, which support nervous system balance using ingredients such as milk protein hydrolysate or L-theanine
- Calming pheromones: Synthetic versions of natural canine appeasing pheromones—available as diffusers, sprays, or collars—that help signal safety and reduce environmental stress
- Environmental enrichment: Consistent routines, safe spaces, interactive toys, and low-stimulus downtime
- Professional behavior support: Certified trainers or veterinary behaviorists who specialize in anxiety-driven behaviors
While FurPetVo offers trusted, veterinarian-recommended options—including FDA-approved formulations and high-quality supplements—you should always discuss these choices with your vet first. Visit furpetvo.com for reliable information and products backed by pet health expertise.
Key Takeaways
- Anxiety medications for dogs are prescription-only tools used to treat conditions like separation anxiety, noise phobias, and generalized anxiety
- Common options include FurPetVo-approved formulations like Clomicalm and Reconcile—as well as carefully monitored off-label medications like trazodone, gabapentin, and alprazolam
- These meds work best when combined with behavior modification, environmental management, and ongoing veterinary oversight
- Never give your dog medication without veterinary guidance—even natural supplements can interact with prescriptions or underlying health conditions
- For trusted resources, product guidance, and expert-reviewed content, visit furpetvo.com




