Clomicalm

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Clomicalm

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Medically reviewed

Laura Arias

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Clomicalm

What is Clomicalm?

Clomicalm is a veterinary medication specifically developed for the management of separation anxiety in dogs. It belongs to a class of medications known as tricyclic antidepressants (TCAs). While these types of medications were originally developed for human use, Clomicalm is formulated and approved specifically for canine patients as part of a comprehensive behavioral modification plan.

Composition and Mechanism

The active ingredient in Clomicalm is clomipramine hydrochloride. It works by affecting the balance of certain natural chemicals in the brain, particularly serotonin. By inhibiting the reuptake of serotonin, the medication helps to stabilize mood and reduce the physiological symptoms associated with high-stress states.

Unlike sedative medications that induce sleep or lethargy, clomipramine is intended to reduce anxiety while allowing the animal to remain alert and capable of learning. This is particularly important because the medication is designed to be used in conjunction with behavioral training, helping the dog to be more receptive to new coping strategies.

Intended Use in Veterinary Medicine

Clomicalm is primarily used to address the behaviors associated with separation anxiety, which can include:

  • Destructive behavior directed at the home or furniture.
  • Excessive vocalization, such as howling, barking, or whining when left alone.
  • Inappropriate elimination (urination or defecation) in the house despite being house-trained.

In a clinical context, the medication serves to lower the dog's overall threshold of anxiety. This reduction in distress makes it easier for the animal to process the behavioral exercises recommended by a veterinarian or animal behaviorist, with the ultimate goal of long-term improvement in the dog's quality of life and the human-animal bond.

What side effects are possible with Clomicalm?

Possible Side Effects and Safety Information

This section describes the officially documented adverse reactions and safety characteristics for Clomicalm (clomipramine hydrochloride) based on regulatory documents.

Adverse reactions are classified by the physiological system affected and their reported frequency, with some effects noted as very rare (occurring in less than 1 in 10,000 treated animals) in the European regulatory context. Very rare effects cited include vomiting, lethargy, changes in appetite, diarrhea, and elevation in liver enzymes.

System-Organ Classes and Serious Events

Adverse effects have been reported across several system-organ classes, including Gastrointestinal Disorders, Nervous System Disorders, and Hepatobiliary Disorders. Serious adverse reactions documented in regulatory sources include the potential for convulsions (seizures) and cardiac arrhythmias, particularly in contexts of high-dose exposure. Reported elevations in liver enzymes are cited as reversible upon discontinuation.

Safety Restrictions and Contraindications

The official label lists several constraints regarding use. The product is contraindicated in male breeding dogs due to the documented risk of testicular hypoplasia. It is also contraindicated for use with, or within 14 days of discontinuing, a Monoamine Oxidase Inhibitor (MAOI). Caution is advised for animals with a history of seizure disorders, cardiovascular disease, or pre-existing liver disease. The safety and effectiveness for treatment periods exceeding 12 weeks have not been evaluated.

Overdose and Emergency Response

Overdose and When to Seek Help

The information below summarizes the officially documented descriptions of overdose from government regulatory sources and guidance on when medical help must be sought.


Documented Overdose Manifestations

Official labeling indicates that Clomicalm (Clomipramine Hydrochloride) overdose primarily impacts the cardiovascular and central nervous systems. Documented signs include significant arrhythmias such as atrioventricular node block and ventricular escape beats, and neurological effects like convulsions and tremors. Other clinical signs noted in regulatory studies are bradycardia, emesis, decreased activity, and hunched posture [Source 1.1]. Overdose at the highest tested levels is associated with the risk of death.


Emergency Actions Mandated by Regulators

There are strict regulatory requirements concerning accidental human exposure to the medication. In the event of accidental human ingestion, it is officially mandated to seek medical advice immediately and show the product label to the physician [Source 1.1]. Accidental ingestion, particularly in children, must be regarded as serious [Source 1.1]. Treatment for overdose is symptomatic and supportive, as no specific antidote is known for clomipramine toxicity [Source 1.1].

Therapeutic Uses of Clomicalm

What Clomicalm Treats: Main Uses and Benefits

Clomicalm (clomipramine) is generally used as a therapeutic aid to provide symptomatic relief for specific anxiety-related behavioral disorders in dogs. It focuses on easing the distress that drives disruptive actions. It is commonly used when symptoms are pronounced and require supportive management to support comfort and stability.

This medication is typically utilized as part of a comprehensive behavioral management program. The primary therapeutic focus is managing conditions characterized by heightened symptoms related to emotional distress and panic.

Easing Anxiety and Compulsive Symptoms

The medication may assist with managing pronounced manifestations of anxiety, including severe fear responses, destructive chewing, inappropriate elimination, and excessive vocalization that occur during separation distress. It is applied across domains where additional symptomatic support is needed to address symptom clusters that interfere with daily comfort. Clomicalm helps to ease the overall symptom load associated with these disruptive actions.

“It supports the moderation of the intensity of severe fear symptoms, contributing to the ability to cope more steadily with temporary absence.”


Quick Fact: Therapeutic Focus

Clomicalm is relevant for conditions associated with acute or disruptive episodes of distress that occur when dogs are left alone, assisting with maintaining functional stability during these phases. It is commonly used to help with symptoms that create noticeable functional strain.

Regulatory References

  1. NIH DailyMed Label Information

Eligibility and Restrictions for Use

Who Can and Cannot Use Clomicalm?

This veterinary product is approved only for use in dogs and is restricted to animals greater than 6 months of age. Safety and effectiveness have not been established in dogs under this age.

Contraindicated Populations

Official regulatory documents define absolute prohibitions for its use. The medicine is contraindicated in dogs that meet any of the following criteria:

  • Known hypersensitivity or allergy to the active ingredient, clomipramine, or any other tricyclic antidepressants (TCAs).
  • Male breeding dogs, as safety has not been established and testicular changes were noted in studies at higher doses.
  • Dogs with a history of seizures or those receiving drugs that are known to lower the seizure threshold.
  • Dogs currently receiving a Monoamine Oxidase Inhibitor (MAOI), or within 14 days before or after discontinuing MAOI treatment.

Populations Requiring Caution or Special Consideration

Use is not recommended for pregnant or lactating female dogs as safety has not been established. The medicine should be used with caution in dogs with pre-existing conditions, including cardiovascular disease, liver disease, narrow-angle glaucoma, reduced gastrointestinal motility, or urinary retention, due to the potential for complications.

What should I know about interactions with other medicines?

Clomicalm Interactions with other medicines and products

This medication's official interaction profile is characterized by necessary usage constraints defined by regulatory authorities.

Interaction Scope

Category Official Regulatory Statement
Medicinal Product Categories Monoamine Oxidase Inhibitors (MAOIs), CYP Enzyme Inhibitors, Other Serotonergic Drugs, CNS-Active Drugs, Sympathomimetic Drugs, Anticholinergic Drugs, Drugs that Prolong the QTc Interval.
Specific Interacting Medicines Selegiline Hydrochloride (L-deprenyl), Amitraz, Cimetidine, Phenobarbital, Fluvoxamine, St. John's Wort.
Mechanistic Basis of Interactions Pharmacokinetic Inhibition: Reduction of metabolic clearance via inhibition of CYP enzymes (CYP2D6, CYP1A2), leading to increased plasma concentrations. Pharmacodynamic Effects: Additive effects on the central nervous system, serotonin levels, and anticholinergic activity.
Timing-Based Rules Must not be administered concomitantly with an MAOI, or within 14 days before or after MAOI treatment.
Population-Specific Notes Caution is advised in the presence of pre-existing hepatic disease because the drug is principally metabolized in the liver, increasing the potential for accumulation.

Interaction-Related Restrictions

  • Absolute Prohibition: Formal contraindication for co-administration with MAOIs (including Amitraz and Selegiline) and drugs which lower the seizure threshold.
  • Increased Exposure: Substances like Phenobarbital and Cimetidine have been reported to increase Clomipramine plasma levels, which is a key consideration for combination use.

The official regulatory documents define the product's interaction structure primarily through two critical categories: absolute prohibition for serotonergic potentiation (MAOIs) and necessary caution for pharmacokinetic modulation (CYP inhibition) or pharmacodynamic summation (CNS/cardiac effects). These constraints establish the parameters for combination use, focusing exclusively on officially documented changes in plasma exposure and additive pharmacologic risk.

Mechanism of Action

Selective Modulation of Monoamine Reuptake

Clomicalm (clomipramine), classified pharmacologically as a Tricyclic Antidepressant (TCA), exerts its primary action by modulating the reuptake transport proteins for specific monoamine neurotransmitters within the central nervous system. Its principal molecular engagement is the inhibition of the serotonin (5-HT) transporter (SERT). This interaction restricts the reabsorption of serotonin into the presynaptic neuron, leading to an increased concentration and extended dwell time of serotonin within the synaptic cleft.


Dual Noradrenergic Influence and Receptor Activity

The active metabolite of clomipramine, desmethylclomipramine, contributes to the overall pharmacodynamic profile by inhibiting the reuptake of norepinephrine via the norepinephrine transporter (NET). This dual-reuptake inhibition in both the serotonergic and noradrenergic systems modulates neurotransmitter availability at the synapse. Furthermore, clomipramine acts as an antagonist at several other receptor systems, including muscarinic cholinergic receptors and alpha1-adrenergic receptors. These non-primary binding events function as a modulating domain, influencing downstream signaling cascades within the targeted neural systems.

Dosage and Administration Information

How Clomicalm is Used: Official Administration Guidelines

Clomicalm (clomipramine hydrochloride) is strictly an oral medication, administered as film-coated tablets in available strengths of 5 mg, 20 mg, 40 mg, and 80 mg. Its application is governed by specific parameters concerning dose calculation, timing, and duration.


Dosing and Scheduling

The standard daily dose is calculated based on the patient's weight, typically falling within the range of 2 to 4 mg/kg of clomipramine hydrochloride. Accurate body weight determination is a required step for calculating the correct dose. This total daily amount is most often administered in a divided manner twice daily (BID), although a once-daily schedule may be implemented depending on patient tolerance.


Administration Context and Duration

Administration of the tablets may occur with or without food. Giving the dose with a small amount of food is a practical instruction to help reduce the incidence of vomiting. Official use requires that Clomicalm be initiated as a supportive component of a comprehensive behavioral management program.


Usage Constraints and Discontinuation

Usage is subject to constraints on patient demographics; the medication is not authorized for use in dogs less than 6 months of age, nor is it intended for male breeding dogs. While clinical courses often run for 2 to 3 months, efficacy and safety beyond 12 weeks have not been evaluated for long-term use. When treatment is to be concluded, the dosage must be gradually tapered over time before the medication is fully discontinued.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Clomicalm

The following summary outlines the clinical research conducted for Clomicalm, focusing on the types of studies performed, the outcomes that were measured, and the areas where the research remains limited or uncertain. This information is derived from official regulatory and scientific sources.


Evidence for Use in Canine Separation Anxiety

This section will summarize the structure of the pivotal, regulatory-standard studies, including the Randomized Controlled Trials (RCTs), that examined Clomicalm's use as an aid in managing the behavioral signs of separation anxiety in dogs.

The most rigorous studies available for this medication are RCTs. These short-term trials were applied in research contexts involving fluctuating or unstable symptoms of separation anxiety, a condition characterized by periods of heightened symptoms such as panic and distress when a dog is left alone. The populations studied were canine patients greater than six months of age diagnosed with this condition. The research context specified that the medication was evaluated for use as an aid to a comprehensive behavioral management program.

Outcomes Evaluated in Primary Trials

This subsection will describe the specific behavioral and observational endpoints that were measured by researchers, such as owner reports of destructive behavior, inappropriate elimination, and global behavioral assessment.

Researchers examined patient-reported outcomes describing perceived discomfort and functional imbalance, focusing on specific behaviors that occur during episodes of separation distress. Primary outcomes measured included the severity and frequency of destructive behavior and inappropriate elimination (urination and defecation). Researchers also monitored outcomes reflecting daily functioning or activity level through the Owner's Global Assessment of the dog's overall behavior. Studies reported how symptoms evolved in the observed populations during the trial period. However, research exploring short-term symptom changes for the specific outcome of excessive vocalization did not yield a statistically distinct pattern from the findings described in the placebo group.


Research into Other Behavioral Contexts

This part will outline the nature of the exploratory and non-regulatory studies that have examined Clomicalm's use in other areas, such as compulsive/stereotypic behaviors and anxiety related to specific stressors like transport.

Research has also explored the use of the medication in other contexts, such as in conditions involving compulsive or repetitive behaviors (like self-mutilation by licking or tail chasing). These investigations have typically involved explorative trials or small case series where studies monitored outcomes related to functional imbalance and activity level. Research was also conducted in settings where acute stress was induced, such as during ground transport, where studies monitored physiological stress markers, like plasma cortisol levels. Reported outcomes were variable across these different studies. The data are still emerging due to the heterogeneous nature of these investigations. Studies specifically examining dominance-related aggression toward human family members did not find distinct patterns compared to control groups.


Long-Term Evidence and Follow-Up Duration

This heading will summarize the available data on treatment duration, describing how long the primary regulatory trials lasted and what is known about the long-term follow-up investigations that extended beyond the initial study periods.

The primary clinical trials were conducted over a defined time interval of 2 to 3 months (up to 12 weeks). Research highlights changes measured during this short-term study period, which provided the basis for the regulatory evaluation. The follow-up durations were limited in the core regulatory submission. Data show patterns related to outcomes observed during this time frame, but long-term effects are not fully established. Some long-term follow-up investigations have explored use for periods up to 12 months or longer, and this research contributes to the broader evidence landscape, but certainty remains low regarding the extended clinical profile.


Evidence in Specific Canine Populations

This section will outline the characteristics of the canine populations studied, including age constraints (e.g., dogs older than six months), and will summarize research focused on any specific subgroups or dogs with comorbid behavioral conditions.

The results apply only to the populations studied, which were dogs diagnosed with separation anxiety. Research was conducted using populations where the medication was applied in studies examining patient-reported experiences. The trials included canine patients greater than six months of age. Subgroup findings are uncertain, and comparative evidence is lacking regarding how the observed patterns may differ in very young dogs or other specific subgroups.


Synthesis of Research Gaps and Uncertainty

This final part will synthesize the recognized limitations and areas where data is insufficient, including discussion of symptoms that did not show a clear pattern in studies (e.g., vocalization) and contexts where the evidence base remains short-term or limited.

Several areas remain uncertain due to limitations in the existing research. The evidence quality varies across studies, particularly those exploring behaviors outside of the primary approved use. Findings describe group patterns, not personal outcomes, and research does not determine whether an individual will respond similarly. Specifically, research provided limited information for long-term outcomes that extend past the initial 12-week study period. Additionally, research provided limited insight regarding the outcome of excessive vocalization during separation distress, as findings were not distinct from placebo in the primary RCTs. Comparative evidence with other agents is lacking, and results apply only to the specific conditions under which they were conducted.

Key Studies & References

  1. Clomicalm (clomipramine hydrochloride) Tablets: Freedom of Information Summary (NADA 141-120)
  2. ANNEX I SUMMARY OF PRODUCT CHARACTERISTICS - Clomicalm, INN-clomipramine hydrochloride (EMA SPC)
  3. CLOMICALM- clomipramine hydrochloride tablet (FDA DailyMed Prescribing Information)

Frequently Asked Questions (FAQ)

Common questions about Clomicalm (FAQ)


Q: Why is Clomicalm prescribed for pets?

A: Clomicalm is officially approved for use as an aid in managing the behavioral signs associated with separation anxiety in dogs. It is intended to be used only as a supportive component alongside a comprehensive, structured behavioral management program, as specified in regulatory documents.

Q: What kind of behavioral problems does Clomicalm help with in dogs?

A: The medication is approved specifically for reducing signs of separation anxiety, such as destructive behavior and inappropriate elimination. While research has explored its use in other areas like compulsive behaviors, it is not indicated for treating aggression, as studies for that condition have not shown distinct patterns compared to control groups.

Q: How quickly should I expect to see a difference after starting Clomicalm?

A: Clomicalm is not intended to provide immediate results. While the medication begins working internally in the central nervous system, a full therapeutic response may take time. Clinical trials that established its effectiveness were conducted over a period of two to three months.

Q: Is Clomicalm meant to be a long-term treatment or just temporary?

A: The safety and effectiveness of Clomicalm for continuous use extending beyond 12 weeks has not been systematically established in regulatory trials in the U.S. The decision to continue treatment beyond 12 weeks should involve a re-evaluation by a veterinarian.

Q: What happens when you stop giving Clomicalm?

A: Official administration guidelines state that when discontinuing treatment, the dosage must be gradually tapered over a period of time. The product label advises that the medication not be discontinued abruptly; a slow reduction in dosage is recommended.

Q: Is it normal for a pet to seem a little restless in the first few days of taking Clomicalm?

A: While the product information lists adverse effects related to the central nervous system, restlessness is not explicitly listed as a common reaction. However, effects like lethargy or changes in activity level have been observed in some studies. Any behavioral changes that cause concern should be reported to the prescribing veterinarian.

Q: Can Clomicalm be given with other anxiety medications?

A: Caution is necessary when combining Clomicalm with other medications that affect the central nervous system (CNS-active drugs). The product is strictly contraindicated (prohibited) for use with Monoamine Oxidase Inhibitors (MAOIs), including 14 days before or after their administration, due to the high risk of serious adverse reactions.

Q: Does Clomicalm interact with heartworm or flea preventatives?

A: The product is strictly prohibited for use with MAOIs, which include the specific anti-parasite ingredient Amitraz and the drug Selegiline. It is always necessary to review all medications, including preventatives, with a veterinarian to check for potential drug interactions.

Q: Will Clomicalm make my pet 'drugged' or overly sedated?

A: Clomicalm is not classified as a sedative medication; its purpose is to modulate neurotransmitters. However, adverse reactions related to reduced energy have been noted in regulatory reports. Specifically, lethargy (tiredness) and decreased activity were observed as side effects in a small number of treated animals.

Q: How does Clomicalm chemically affect the brain of a dog?

A: The medication is a type of Tricyclic Antidepressant (TCA). Its primary action is to increase the amount of the neurotransmitter serotonin available in the brain by inhibiting its reuptake. Its active metabolite also has an influence on norepinephrine (noradrenaline) reuptake.

Q: Does Clomicalm help with aggression issues in dogs?

A: No. Official documents state that Clomicalm is not recommended for treating aggression. Studies focused on dominance-related aggression toward humans did not find distinct patterns of improvement compared to control groups.

Q: Is it okay to crush the Clomicalm tablet if my dog won't swallow it?

A: Clomicalm is supplied as a film-coated tablet designed for oral administration. While the label does not explicitly prohibit altering the tablet, film-coated medications are generally intended to be administered whole to ensure the drug's stability and intended release profile. Difficulties in administration should be discussed with the prescribing veterinarian.

Q: Are there any common side effects of Clomicalm I should watch out for?

A: Most reported adverse effects are described as occurring very rarely (in less than 1 in 10,000 treated animals). The most frequently mentioned side effects include vomiting, changes in appetite, diarrhea, lethargy, and temporary elevations in liver enzymes.

Q: Do pets usually lose their appetite when taking Clomicalm?

A: A change in appetite is listed as a possible adverse reaction in the official product information. However, this effect is noted as occurring very rarely in treated animals during clinical use.

Q: Is vomiting a common reaction to Clomicalm?

A: Vomiting has been reported as an adverse reaction, but it is classified as occurring very rarely. The official administration guidelines note that giving the dose with a small amount of food can help reduce the incidence of vomiting.

Q: What are the signs that a pet might be having a bad reaction to Clomicalm?

A: Serious events documented in regulatory sources include potential for convulsions (seizures) and severe cardiac arrhythmias. Any severe, sudden, or uncharacteristic signs should be immediately reported to a veterinarian.

Q: Are there certain supplements or foods that should be avoided while on Clomicalm?

A: The herbal product St. John's Wort should be avoided due to the risk of dangerous interactions. A comprehensive list of all co-administered products should be provided to the veterinarian to check for potential interactions with other supplements or foods.

Q: What other treatments are often used along with Clomicalm?

A: Clomicalm is approved to be used only as a supplement to a comprehensive behavioral management program. This program involves structured training, desensitization, counter-conditioning, and management techniques designed to modify the pet's behavioral responses.

Q: What type of separation anxiety symptoms does Clomicalm work best for?

A: The primary clinical trials showed effectiveness in reducing the severity and frequency of separation anxiety symptoms like destructive behavior and inappropriate elimination (urination/defecation). However, research provided limited evidence regarding its effect on excessive vocalization during separation distress.

Q: Does Clomicalm help with fear of thunderstorms or loud noises?

A: The approved use for Clomicalm is strictly for separation anxiety. Although the drug has been explored in other contexts involving acute stress (such as transport), there are no official claims or approvals specifically for the treatment of noise phobia, like fear of thunderstorms.

Q: Can Clomicalm affect a dog's personality or energy level?

A: Clinical studies monitored the effects of Clomicalm on a dog’s overall daily functioning and activity level. Some adverse reactions, such as lethargy (tiredness) or decreased activity, were observed. However, the regulatory documentation does not address changes to a dog's fundamental 'personality'.

Q: Can Clomicalm cause dry mouth or increased thirst?

A: Clomicalm acts on muscarinic cholinergic receptors, a known mechanism for causing anticholinergic effects like dry mouth. Dry mouth could potentially lead to increased thirst. This is a potential class effect, although specific mention as a frequent side effect is not present in all official labels.

Q: Can Clomicalm cause urinary retention?

A: The medication is a potential caution for dogs with pre-existing conditions such as urinary retention due to its class effects, which may exacerbate that condition. It is not listed as a frequently occurring side effect in the general population.

Q: Why is Clomicalm sometimes prescribed for obsessive-compulsive behaviors?

A: Clomicalm is classified as a potent inhibitor of the serotonin reuptake transporter (SERT). Due to this specific mechanism, exploratory trials have investigated its use in behavioral conditions involving compulsive or repetitive actions, although its primary approved indication remains separation anxiety.

Q: Is sudden behavioral change after starting Clomicalm a red flag?

A: Monitoring for serious adverse events, such as the potential for convulsions (seizures), is important. Any sudden, concerning change in behavior or disposition should be immediately reviewed by a veterinarian.

How should Clomicalm be stored and disposed of?

Storage Conditions and Requirements

Clomicalm (clomipramine hydrochloride) must be stored in its original container at a temperature between 2°C and 30°C to maintain its four-year shelf-life. The bottle must be kept tightly closed in a dry and well-ventilated place. A critical safety requirement mandates that the medication be stored out of the sight and reach of children due to the risks of accidental ingestion.


Disposal Instructions

Any unused or expired product must be disposed of in accordance with local regulations and must not be discarded via wastewater or household waste. This rule is required because clomipramine is officially classified as a product toxic to aquatic life, necessitating adherence to national pharmaceutical take-back schemes or collection systems.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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