Dog anxiety is a common and often distressing condition for both pets and their owners. When faced with various treatment and medication options, pet parents can feel overwhelmed. This guide aims to demystify dog anxiety medications, explaining how they work, common types available, and the importance of a comprehensive approach to treatment. Your veterinarian is the primary resource for diagnosing and managing your dog’s anxiety. Treating dog anxiety effectively often involves a combination of medication and behavior modification.
How Dog Anxiety Medications Work
Anti-anxiety medications work by helping your dog feel calmer, while behavior modification techniques help re-model their emotional responses to anxiety-inducing triggers. This means that while medication can alleviate immediate symptoms, it’s crucial to implement training and environmental changes to help your dog learn to be less fearful and more relaxed in general. Medication alone is typically not a complete solution for anxiety in dogs.
Canine medications are available for both short-term and long-term use, addressing a range of common behavioral issues such as fear, stress, impulsivity, obsessive behaviors, panic disorders, and aversions to specific stimuli or experiences like grooming or car rides. It is important to note that there are no quick fixes for dog anxiety. Working with a certified behaviorist or trainer is the most effective way to help resolve your dog’s anxiety-related behaviors. For conditions requiring long-term medical treatment, it may take four to six weeks to see the full effects of the medication, and treatment should continue for at least two months after a positive response is observed.
Long-Term vs. Short-Term Anxiety Medications for Dogs
Some dogs can eventually be weaned off their anti-anxiety medications as they progress in behavioral therapy. Others, however, may require long-term treatment. Short-term medications are beneficial for dogs experiencing anxiety triggered by specific circumstances, such as car rides, veterinary visits, or thunderstorms. These medications take effect quickly and have a limited duration. If your dog’s sensitivity to triggers is mild, discuss management and desensitization options with your vet, which can complement medication. Strategies like introducing a travel crate for car rides, using white noise during thunderstorms, or positive reinforcement training can help mitigate fear responses. Dogs on medication for six months or longer should have yearly checkups, including blood work, and periodic behavior re-evaluations to ensure their treatment plan remains optimal.
Common Anxiety Medications for Dogs
Currently, Clomicalm, Reconcile, and Sileo are the only FDA-approved medications specifically for dogs. Other medications your veterinarian may recommend are human medications used off-label. This means they are prescribed for a species or condition not specified on the label, which can only be done by a veterinarian with direct knowledge of your dog when no other appropriate options exist. These medications may need to be compounded by a specialty pharmacy into different formulations, such as flavored chewable tablets or liquids, especially if the standard dosage strength is not suitable for dogs or if your dog is a reluctant pill-taker.
1. Alprazolam (Xanax)
Alprazolam is often prescribed for phobias, fear, and panic disorders, particularly situational anxieties like thunderstorms, road trips, and vet visits. As a short-acting benzodiazepine sedative, it depresses central nervous system activity. It takes effect quickly and can be administered up to four times daily, ideally 30-60 minutes before exposure to a trigger. If used long-term, it should not be stopped abruptly without veterinary guidance. Potential side effects include grogginess and loss of balance.
2. Amitriptyline
This tricyclic antidepressant medication is used for separation anxiety, reactivity, anxious aggression, and generalized anxious tendencies. Amitriptyline works by increasing serotonin and norepinephrine levels, which influence mood. It should not be given to dogs with diabetes or epilepsy. This medication takes one to four weeks to become effective and is typically given twice daily with food. Tapering off is recommended if used for more than a week or two. Potential side effects include lethargy, sedation, urine holding, and dilated pupils.
3. Buspirone
Buspirone is an azapirone-class medication used for phobias and generalized anxiety. It requires consistent use to be effective and is not suitable for situational anxieties. It appears to work by activating serotonin and dopamine receptors in the brain, acting as a mild anti-anxiety agent. Buspirone can take up to six weeks to show effects and may be given two to three times daily, with or without food. A potential side effect is loss of appetite.
4. Clomipramine (Clomicalm)
Clomipramine, available as the FDA-approved brand name Clomicalm, is a tricyclic antidepressant used for separation anxiety and repetitive disorders in dogs. It increases serotonin and norepinephrine levels to affect mood. Therapeutic effects can take four to six weeks, with up to two months needed to assess its full benefit. It’s given once or twice daily and should not be stopped abruptly. Potential side effects include drowsiness, vomiting, increased heart rate, dry mouth, and decreased appetite.
5. Dexmedetomidine (Sileo)
Sileo is the first FDA-approved medication for noise aversion in dogs. This alpha-2 adrenoceptor agonist depresses brain activity, reducing anxiety and promoting relaxation. It is most effective when given 30-60 minutes before a noise event or at the first sign of anxiety. Sileo is an oromucosal gel applied between the cheek and gums, absorbed through the mouth tissue. Potential side effects include drowsiness, vomiting, weakness, loss of balance, sedation, head tremor, and inappropriate urination.
6. Diazepam
Diazepam is a short-acting benzodiazepine sedative used for situational anxiety, panic disorders, noise aversion, and phobias. It should be given 30-60 minutes before an anxiety-inducing event or at the earliest sign of anxiety. Like other benzodiazepines, it depresses central nervous system activity. It should not be stopped abruptly if used long-term. Potential side effects include grogginess, sedation, loss of balance, increased appetite, agitation, and aggression.
7. Fluoxetine (Reconcile or Prozac)
Fluoxetine, marketed as Reconcile (FDA-approved for separation anxiety in dogs), is a selective serotonin-reuptake inhibitor (SSRI) used for separation anxiety, fear, aggression, and compulsive behaviors. SSRIs increase serotonin levels in the brain, aiding mood regulation and reducing anxiety. It is given once daily and can take four to six weeks to show noticeable improvements. Potential side effects include lethargy, decreased appetite, vomiting, muscle tremors, diarrhea, restlessness, and excessive vocalization.
8. Lorazepam (Ativan)
Lorazepam is a short-acting benzodiazepine that takes effect in about 30 minutes, making it suitable for preemptive use before known anxiety triggers or at the first sign of anxiety. It enhances gamma-aminobutyric acid (GABA) activity in the brain, producing a calming effect. Long-term use should not be stopped abruptly. Potential side effects include grogginess, sedation, loss of balance, increased appetite, excitement, and aggressive behavior.
9. Paroxetine (Paxil)
Paroxetine is an SSRI that increases serotonin levels in the brain. It is used for generalized anxiety, anxious aggression, and noise-related fear. It can take four to six weeks to become effective and is given once daily. Abrupt discontinuation after long-term use is not recommended. Potential side effects include constipation, loss of appetite, drooling, vomiting, diarrhea, agitation, sedation, lethargy, and urine holding.
10. Sertraline (Zoloft)
Sertraline is another SSRI that increases brain serotonin levels, helping with mood regulation and reducing anxiety, impulsivity, and aggression. It is used for separation anxiety, general anxiety disorders, impulsivity, thunderstorm phobias, compulsive behaviors, and fear-based aggression. Sertraline typically takes four to six weeks to reach its full effect and is given daily. Do not abruptly stop this medication if your dog has been on it for two months or longer. Potential side effects include lethargy, loss of appetite, vomiting, diarrhea, agitation, sedation, and urine holding.
Alternatives To Anxiety Medications for Dogs
For less severe cases or as complementary treatments, your veterinarian might suggest over-the-counter options. These can include dog calming treats, pheromone diffusers, or compression garments like Thundershirts. Always consult your vet to determine the best approach for your pet.
Dog Anxiety Medications FAQs
What is the best drug for anxiety in dogs?
The “best” drug depends on the individual dog’s needs, the type of anxiety, and a veterinary diagnosis. A vet visit is crucial to rule out medical causes and determine if medication is necessary, often in conjunction with behavioral therapy.
How can I calm my anxious dog down?
Calming an anxious dog involves identifying triggers, consulting your veterinarian for diagnosis and treatment options, which may include behavioral modification, creating a safe space, increasing exercise, and using calming aids or medications.
Can you train anxiety out of a dog?
Behavioral training and modification, guided by a professional, can significantly help dogs manage and reduce their anxiety and stress responses.
Can I give my dog Benadryl for anxiety?
Benadryl is an antihistamine primarily for allergies. While it may have mild sedative effects, it is generally not considered very helpful for treating canine anxiety.
Can I give my dog melatonin for anxiety?
Melatonin can help some dogs relax and may be useful for anxiety. However, always consult your veterinarian to establish the most appropriate treatment plan for your dog’s anxiety.

