Dealing with dog anxiety can be a challenging and often confusing experience for pet parents. Dogs can suffer from various anxiety-related behavioral disorders, some of which can be profoundly debilitating, such as separation anxiety. When faced with numerous treatment and medication options, it’s essential to seek guidance. This article explores the role of anxiety medications for dogs, how they function, and commonly prescribed options available for discussion with your veterinarian.
How Dog Anxiety Medications Work
While your veterinarian is the primary resource for addressing your dog’s anxiety, it’s crucial to understand that medication is typically most effective when combined with behavior modification protocols. Anti-anxiety medications can help your dog feel calmer, while behavior modification techniques aim to reframe your dog’s emotional response to anxiety-inducing triggers, helping them become more relaxed and less fearful.
Medication alone is rarely a complete solution for anxiety in dogs, making behavioral intervention a necessary component of any treatment plan. Canine anxiety can manifest in various ways, leading to the availability of medications for both short-term and long-term use. Common behavioral issues associated with anxiety in dogs include fear, stress, impulsivity, obsessive behaviors (like spinning or tail chasing), panic disorders, and aversions to specific stimuli or experiences (such as grooming or car rides). It is important to remember that there are no quick fixes for dog anxiety. Collaborating with a certified behaviorist or trainer is the most effective approach to resolving these issues. For conditions requiring long-term medical treatment, it may take four to six weeks for medication to become fully effective, and treatment often needs to 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 anxiety medications as they learn coping mechanisms through behavioral therapy. Others may require long-term treatment. For dogs experiencing anxiety or stress triggered by specific circumstances like car rides, veterinary visits, or thunderstorms, short-term medications that act quickly and have a limited duration of effect can be beneficial. If your dog’s sensitivity to these triggers is mild, discuss management and desensitization options with your vet, such as introducing a travel crate, using white noise machines during storms, or employing positive reinforcement training. Dogs on medication for six months or longer should undergo yearly checkups, 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 anxiety medications for dogs. Other commonly recommended medications are human drugs used off-label, meaning they are prescribed for a species or condition not specified on the label. This off-label use is permissible only by a veterinarian with direct knowledge of the dog and when no other appropriate medications exist. These medications may require compounding by a specialty pharmacy to create flavored chewable tablets, capsules, liquids, or transdermal formulations suitable for canine administration, especially for dogs who dislike taking pills.
1. Alprazolam (Xanax)
- Used in dogs for: Phobias, fear, panic disorders.
- Description: Often prescribed for situational anxiety triggered by thunderstorms, road trips, or vet visits. Alprazolam is a short-acting benzodiazepine sedative that depresses central nervous system activity. It should be administered 30 to 60 minutes before exposure to a trigger for maximum effectiveness. If used long-term, it should not be stopped abruptly.
- Potential side effects: Grogginess, loss of balance.
2. Amitriptyline
- Used in dogs for: Separation anxiety, reactivity, anxious aggression, generalized anxiety.
- Description: A tricyclic antidepressant that increases levels of serotonin and norepinephrine. It should not be given to dogs with diabetes or epilepsy. Amitriptyline takes one to four weeks to become effective and is typically given twice daily with food. Tapering off the medication is necessary if used for more than a week or two.
- Potential side effects: Lethargy, sedation, difficulty urinating, dilated pupils.
3. Buspirone
- Used in dogs for: Phobias, generalized anxiety.
- Description: An azapirone class medication that requires consistent use and is not ideal for situational anxieties. It activates serotonin and dopamine receptors in the brain. Buspirone can take up to six weeks to work and may be administered two to three times daily.
- Potential side effects: Loss of appetite.
4. Clomipramine (Clomicalm)
- Used in dogs for: Separation anxiety, repetitive disorders.
- Description: An FDA-approved tricyclic antidepressant for separation anxiety in dogs. It increases serotonin and norepinephrine levels. Therapeutic effects may take four to six weeks, with up to two months needed to assess its full benefit. It’s administered once or twice daily and should not be stopped abruptly.
- Potential side effects: Drowsiness, vomiting, increased heart rate, dry mouth, decreased appetite.
5. Dexmedetomidine (Sileo)
- Used in dogs for: Situational anxiety, noise phobias, aversions.
- Description: The first FDA-approved medication for noise aversion-related fear and anxiety. It’s an alpha-2 adrenoceptor agonist that reduces anxiety by depressing brain activity. Sileo works best when given 30-60 minutes before a noise event or at the first sign of anxiety. It’s administered as a transmucosal gel between the cheek and gums.
- Potential side effects: Drowsiness, vomiting, weakness, loss of balance, sedation, head tremor, inappropriate urination.
6. Diazepam
- Used in dogs for: Situational anxiety, panic disorders, noise aversion, phobias.
- Description: A short-acting benzodiazepine sedative that should ideally be given 30-60 minutes before a known anxiety-inducing event. It can also be administered at the earliest sign of anxiety. Long-term use requires gradual weaning under veterinary supervision.
- Potential side effects: Grogginess, sedation, loss of balance, increased appetite, agitation, aggression.
7. Fluoxetine (Reconcile or Prozac)
- Used in dogs for: Separation anxiety, fear, aggression, compulsive behaviors, impulsivity.
- Description: An FDA-approved SSRI for separation anxiety, also prescribed for other anxiety and behavioral issues. SSRIs increase serotonin levels in the brain, aiding mood regulation. Fluoxetine is given once daily and may take four to six weeks to show noticeable improvements.
- Potential side effects: Lethargy, decreased appetite, vomiting, muscle tremors, diarrhea, restlessness, excessive vocalization.
8. Lorazepam (Ativan)
- Used in dogs for: Situational anxiety, phobias, fear anxiety, panic disorders.
- Description: A short-acting benzodiazepine that takes effect in about 30 minutes, best administered before an anxiety-inducing event. Promoting GABA activity in the brain leads to a calming effect. Similar to other benzodiazepines, it should not be stopped abruptly after long-term use.
- Potential side effects: Grogginess, sedation, loss of balance, increased appetite, excitement, aggressive behavior.
9. Paroxetine (Paxil)
- Used in dogs for: Generalized anxiety, anxious aggression, noise phobias.
- Description: An SSRI that increases serotonin levels in the brain. Paroxetine may take four to six weeks to become effective and is given once daily. Abrupt discontinuation after long-term use should be avoided.
- Potential side effects: Constipation, loss of appetite, drooling, vomiting, diarrhea, agitation, sedation, lethargy, urine holding.
10. Sertraline (Zoloft)
- Used in dogs for: Separation anxiety, anxiety disorders, impulsivity disorders, thunderstorm phobia, compulsive behaviors, fear-based aggression.
- Description: An SSRI that boosts serotonin levels for mood regulation. Sertraline typically takes four to six weeks for full effect and is administered daily. Dogs on this medication for two months or longer should not stop abruptly without veterinary guidance.
- Potential side effects: Lethargy, loss of appetite, vomiting, diarrhea, agitation, sedation, urine holding.
Alternatives To Anxiety Medications for Dogs
Your veterinarian may also suggest over-the-counter options for mild anxiety, such as calming treats, pheromone diffusers, or compression garments like Thundershirts.
What is the best drug for anxiety in dogs?
The most appropriate medication depends on the specific dog and the nature of their anxiety. A veterinary visit is crucial to rule out medical causes and discuss concerns. Often, a combination of medication, behavioral modification, and professional training yields the best results.
How can I calm my anxious dog down?
Identifying the trigger for your dog’s anxiety is the first step. This could range from medical conditions and pain to separation or noise phobias. Consulting your veterinarian will help determine the cause and appropriate treatment, which may include training, creating a safe space, increased exercise, calming aids, and potentially medication.
Can you train anxiety out of a dog?
Behavioral training and modification techniques, guided by a professional, can significantly help dogs manage and reduce their anxiety by redirecting anxious behaviors and teaching coping strategies.
Can I give my dog Benadryl for anxiety?
Benadryl, primarily an antihistamine, may cause mild sedation but is generally not considered a primary or highly effective treatment for dog anxiety.
Can I give my dog melatonin for anxiety?
While melatonin is sometimes used for sleep issues in humans and pets, its efficacy for specific anxiety disorders in dogs should be discussed with your veterinarian.

