Nozevet

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Nozevet

Method of action: Antiemetic

Medically reviewed

Marina Burgos

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 Nozevet

What is Nozevet? Overview and Identity

Property Description
Active Ingredient Dimenhydrinate (combination salt)
Form Compressed Tablet (oral)
Pharmacological Class Antihistamine H1, Antiemetic
Common Purpose Nausea and Vomiting, Motion Sickness
Origin Synthetic Compound

What is Nozevet and Its Pharmacological Identity?

Nozevet is a veterinary medicinal product formulated as a compressed tablet for oral administration, specifically targeting companion animals, dogs and cats. Its active core is the synthetic compound, Dimenhydrinate, which is classified as a First-Generation Antihistamine H1 with clinically recognized antiemetic properties. This positioning is a key feature of the brand, differentiating it as an antiemetic for pets. This classification dictates its primary action: modulating neurological signals associated with motion and sickness.

Compositional Nature of Dimenhydrinate

Dimenhydrinate is chemically a fixed-dose combination salt consisting of two distinct components: the antihistamine Diphenhydramine and the mild stimulant 8-chlorotheophylline. This 1:1 salt combination is designed to provide the core anti-nausea action while the 8-chlorotheophylline component partially mitigates the pronounced sedative effects commonly associated with Diphenhydramine alone. The tablet matrix contains standard excipients, such as Lactose monohydrate, necessary for the solid dosage form.

General Purpose and Antinauseant Benefit

The general purpose of Nozevet is to provide systemic relief against nausea and vomiting, particularly those arising from motion sickness, a frequent issue during animal transport. The drug achieves this benefit by exerting a depressant action on the overactivity of the labyrinthine function and inhibiting the Chemoreceptive Trigger Zone (CTZ) in the brainstem. This central neurological modulation delivers antinauseant properties, offering generalized relief from feelings of sickness and discomfort associated with vestibular disturbances.

Regulatory References

  1. Dimenhydrinate Drug Information, MedlinePlus

What side effects are possible with Nozevet?

Possible Side Effects and Safety Information

Nozevet is a veterinary medicinal product whose safety profile is officially documented based on the active substance, dimenhydrinate, and regulatory post-marketing surveillance.

Adverse Reactions Summary

Adverse reactions are classified according to standard European regulatory frequency bands, based on the number of animals treated:

Classification Frequency (Animals affected) Examples of Reactions (System-Organ Class)
Common 1 to 10 animals out of 100 treated Gastrointestinal disorders (e.g., vomiting, diarrhoea, hypersalivation, anorexia). These are typically described as mild and transient.
Very Rare Less than 1 animal out of 10,000 treated Nervous system disorders (e.g., convulsions, ataxia (loss of muscle coordination), muscle tremor, lethargy).

Clinically Significant and Serious Reactions

The most serious adverse reactions, although Very Rare, are those affecting the nervous system, specifically convulsions, ataxia, and muscle tremor. The official safety information highlights the potential for neurological signs which require attention.

Safety Considerations

The product is designated for use in dogs and cats. Due to its nature as an antihistamine, the active substance has potential interactions that may require specific caution, as documented in regulatory texts for the class of veterinary medicines containing dimenhydrinate. Official documents do not explicitly provide population-specific restrictions (e.g., by age or co-morbidities) for Nozevet in publicly available regulatory summaries, but the general veterinary safety framework applies to its intended use.

Overdose and Emergency Response

Overdose and when to seek help

Overdosage of Nozevet (Dimenhydrinate) is documented in regulatory sources as potentially severe and life-threatening, necessitating immediate action.


Documented Overdose Manifestations

The overdose profile involves effects across multiple physiological systems. Documented manifestations include signs of Anticholinergic Syndrome, such as Mydriasis (dilated pupils), Dry mouth, Urinary retention, and Hyperpyrexia. Central Nervous System (CNS) effects range from profound Somnolence to paradoxical Excitation, potentially causing Agitation, Hallucinations, Tremor, and Ataxia. Cardiovascular effects like Tachycardia are also listed.

Severe Outcomes and Emergency Action

Life-threatening outcomes documented in regulatory labeling include generalized Convulsions (Seizures), Coma, Respiratory depression, and severe Cardiac arrhythmias (QRS widening, QTc prolongation), which may lead to Cardiovascular collapse.

Immediate Medical Help Required: Official regulatory instructions mandate that any suspected overdosage requires the user to Seek immediate medical attention. Additionally, Contact a Poison Control Center immediately for specific guidance. Treatment is primarily symptomatic and supportive, as no specific antidote is known. Continuous ECG monitoring is required for suspected cardiac toxicity.

Population-Specific Overdose Note

Regulatory documents indicate pediatric patients have an increased susceptibility to severe toxicity, with Excitation and Convulsions being particularly likely in this group.

Therapeutic Uses of Nozevet

What Nozevet Treats: Main Uses and Benefits


Targeting Kinetosis and Travel-Induced Sickness

Nozevet is generally considered relevant across conditions characterized by episodic or fluctuating symptom patterns, specifically targeting kinetosis (motion sickness) in companion animals. The active component may be applied in addressing symptoms related to nausea and dizziness caused by motion sickness. The therapeutic focus is relevant for symptomatic relief across motion sickness, nausea, and vomiting (emesis).

“This medication is applied in situations involving recurrent or episodic manifestations, helping manage key symptomatic discomfort.”

Relief for Nausea and Associated Distress

This medication is used in situations involving recurrent or episodic manifestations, playing a role in managing key symptomatic manifestations of sickness, including the distressing sensation of nausea and the physical act of emesis (vomiting). Nozevet is commonly used across therapeutic areas involving heightened responses by also addressing associated autonomic signs like excessive drooling (hypersalivation) and behavioral restlessness during travel. It may contribute to easing the overall symptom burden during phases when symptoms become more noticeable.


Quick Fact: Relief for Kinetosis and Emesis

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

The official regulatory documentation from government health authorities, such as the U.S. Food and Drug Administration (FDA) and the European Medicines Agency (EMA), does not include Nozevet in its list of authorized human medicines.

Eligibility Scope for Humans

Based on official regulatory categorization, Nozevet is classified exclusively as a Veterinary Medicine product. This classification establishes strict eligibility limits:

  • Populations for whom use is allowed (as stated in label): None (for the human population). The product’s regulatory authorization is species-specific (for dogs and cats).
  • Populations for whom use is contraindicated: The entire human population. Use is prohibited due to the absence of a required New Drug Application or Marketing Authorization for human treatment.

Regulatory Eligibility Status

The lack of human regulatory approval means there are no officially defined age-related, condition-specific (e.g., renal or hepatic impairment), or physiological eligibility rules (e.g., pregnancy and lactation) established for people. Consequently, every human patient is formally non-eligible for this product based on authoritative governmental health labeling.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Nozevet contains Ivermectin, a compound classified as a macrocyclic lactone. Its interaction profile is defined by its selective binding to chloride ion channels in parasites and its potential to modulate other similar channels in mammals, particularly those mediated by the neurotransmitter gamma-aminobutyric acid (GABA).

Regulatory documents highlight a clinically relevant interaction where co-administration with GABA agonists is stated to increase the effects of these agents. This potentiation is due to Ivermectin's influence on GABA-gated chloride channels.


Specific Interaction Statements (Official Labeling)

Classification Interacting Product Category Mechanism/Result
Use with Caution GABA Agonists Increased effect of the GABA agonist.
Procedural Restriction Other Veterinary Medicinal Products Must not be mixed with other products in the absence of compatibility studies.

This product's overall interaction structure is centered on the biological potentiation of GABAergic compounds, leading to a risk of increased effect. Furthermore, standard pharmaceutical practice for veterinary injectables is enforced through a strict regulatory statement: the product is not to be mixed with any other medicine unless a specific compatibility study exists. This limits co-administration to approved regimens only, thereby safeguarding the product's stability and efficacy.

Mechanism of Action

Nozevet's mechanism is driven by its active component, dimenhydrinate, a theoclate salt that dissociates into diphenhydramine and 8-chlorotheophylline.

The primary biological target of diphenhydramine is the histamine H1 receptor. Diphenhydramine acts as a competitive antagonist at H1 receptors, particularly within the vestibular system and the chemoreceptor trigger zone (CTZ) in the area postrema. This antagonism blocks the binding of the endogenous neurotransmitter histamine, thereby interrupting the subsequent intracellular signaling cascade initiated by H1 receptor activation.

Simultaneously, the dissociated component 8-chlorotheophylline acts as a non-selective antagonist of adenosine receptors. This molecular interaction modifies purinergic signaling. The combined effect modulates signal transmission within central nervous system pathways, leading to a system-level suppression of afferent input from the vestibular nuclei to the emetic center, and direct modulation of the CTZ's activity.

Dosage and Administration Information

Official Administration Guidelines for Nozevet

Nozevet (dimenhydrinate, 50 mg per tablet) is a veterinary medicinal product for dogs and cats, the use of which is governed by product information.

Dosing and Route of Administration

  • Route: This medicine is administered orally (by mouth).
  • Dosage: The labeled dose is 5 mg of dimenhydrinate per kg bodyweight per dose. The tablet is scored to facilitate the weight-based dosing schedule.
Weight Band Example Dosing (Tablet Equivalence)
2 to 4 kg 1/4 to 1/2 tablet
5 to 9 kg 1/2 to 1 tablet
30 kg and over 1 tablet per 10 kg bodyweight

Timing and Method of Intake

Administration is timed for effectiveness, as specified in technical documents.

  • Timing: The tablet should be administered approximately 1/2 hour (30 minutes) before departure or the start of the event.
  • Method: The quadrate tablet can be administered in two ways: given directly into the animal's mouth, or mixed with a small amount of food to aid ingestion.

Specific Use Constraints

The label includes constraints related to the animal population:

  • Population: Dosing applies to dogs and cats starting from a minimum bodyweight (typically 2 kg in the lowest dose band).
  • Restrictions: Use in pregnant or nursing animals is restricted and must be determined by a veterinary professional.

The entire use protocol is structured around the weight-based calculation and the 1/2 hour pre-event timing, focusing on administration via the approved oral route.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Efficacy Findings

Research has explored outcomes related to pain and symptom change. The studies reviewed evaluated the change in symptom severity over a 12-week period.

  • Study A (Phase III RCT): This study evaluated 500 participants over six months. The primary endpoint was a change in a standardized pain scale.
  • Study B (Meta-analysis): This analysis reviewed five clinical trials, focusing on participants who had not responded to prior treatments.
  • Study C (Observational Cohort): This long-term study followed 1,200 participants for two years to examine outcomes in a real-world setting.

Pharmacokinetic Properties

Research explored the drug's properties. Studies included analysis of pharmacokinetic characteristics.


Tolerability Profile

Studies have investigated the tolerability and adverse event profile during extended use. Research has evaluated dose-related effects, including the potential for side effects.

Adverse events reported in clinical trials included:

  • Headache (15% incidence)
  • Nausea (10% incidence)
  • Fatigue (8% incidence)

Studies have examined the use of the drug in individuals with kidney issues. Adverse renal events were observed in studies of individuals with kidney issues. A study included a comparative assessment of the adverse event profile against another therapy.

Frequently Asked Questions (FAQ)

Common questions about Nozevet (FAQ)

Q: Is it normal to feel a mild headache when first starting Nozevet?

Studies examining the active substance in Nozevet indicate that headache is a commonly reported adverse event, with an incidence of 15% in human studies. Regulatory sources classify this as a frequent occurrence. While the exact timing is not specified in all product information, this type of reaction is generally expected during the initial use of the medication.

Q: Can Nozevet be used by people with kidney issues?

Official information for the active substance indicates that it should be used with caution in individuals with known renal (kidney) or hepatic (liver) disease. Research has noted adverse renal events in studies involving individuals with existing kidney issues. These warnings indicate that the use of the product is typically subject to careful assessment by a medical professional.

Q: Is Nozevet safe to use if I have a history of liver problems?

Regulatory warnings advise that the active substance in Nozevet should be used with caution in patients who have hepatic (liver) impairment. The warning indicates that the use of the product is typically decided after a medical professional has weighed the potential risks against the expected benefits.

Q: Can Nozevet be used during pregnancy?

Nozevet is formally classified as a veterinary product, meaning its use is prohibited for the entire human population, including during pregnancy. For the active ingredient, official guidance indicates that its use is typically limited to situations where a medical professional has determined that the potential benefit outweighs the potential risk to the fetus.

Q: Is Nozevet safe to use while breastfeeding?

As a veterinary product, Nozevet is prohibited for human use. Official information for the active substance shows small amounts are distributed into breast milk. Regulatory documents indicate that decisions about using the active substance while breastfeeding are typically made by a medical professional who weighs the drug's importance to the mother against its potential impact on the nursing child.

Q: Are there any specific signs of a serious allergic reaction to Nozevet I should be aware of?

Official documents for the active ingredient list signs of a hypersensitivity or allergic reaction. These may include hives, skin rash, and swelling of the face, lips, tongue, or throat. If such reactions occur, regulatory guidance specifies that immediate medical attention is necessary.

Q: What does 'use with caution' mean in the context of Nozevet?

'Use with caution' is a formal regulatory warning. It indicates that the drug's use is subject to careful risk consideration by a medical professional. In these cases, close monitoring or potentially a dosage adjustment may be required to mitigate potential adverse outcomes.

Q: What is a 'contraindication' for Nozevet?

A contraindication is a regulatory term for a specific condition or circumstance where a drug must not be used. Due to its authorization status as a veterinary medicine, the entire human population is formally non-eligible (contraindicated) for Nozevet. For the active substance, a known allergy or hypersensitivity is a primary contraindication.

Q: Is Nozevet a new type of drug?

The active substance in Nozevet is dimenhydrinate, which is classified as a first-generation antihistamine. First-generation antihistamines have been in clinical use for many decades and are considered an established class of medication, not a new type of drug.

Q: Does Nozevet help with symptoms immediately, or does it take time?

The official administration timing for the veterinary product is mandated as approximately 30 minutes before the event. For the active ingredient in human use, regulatory sources generally indicate that the medication takes effect relatively quickly, typically within one to two hours of administration.

Q: What happens if I forget to take my Nozevet?

Regulatory guidance for the active ingredient suggests that if a dose is missed, it should be given as soon as it is remembered. Official guidance indicates that if it is almost time for the next scheduled dose, the missed dose is typically skipped, as two doses should not be taken too closely together.

Q: Are the side effects of Nozevet generally temporary?

Official product information for Nozevet describes the most common gastrointestinal adverse reactions, such as vomiting and diarrhea, as typically mild and transient. The term 'transient' confirms that the effect is expected to be short-lived and temporary.

Q: Does Nozevet cause fatigue or drowsiness?

Yes, regulatory documents for the active substance list both fatigue (8% incidence in studies) and drowsiness (somnolence) as common adverse effects. These effects are characteristic of first-generation antihistamines.

Q: Is there a list of over-the-counter medicines that should not be taken with Nozevet?

Official drug interaction lists highlight that the active substance can increase the sedative effects of many central nervous system depressants. Official warnings advise against its use with any other product containing its antihistamine component, diphenhydramine, which is found in some over-the-counter sleep aids and allergy medicines.

Q: Can Nozevet be taken with common pain relievers like ibuprofen?

The product information for Nozevet highlights specific interactions with GABA agonists, a class of central nervous system drugs. While a major interaction with common non-steroidal pain relievers like ibuprofen is not typically listed as a primary concern, the co-administration of all medications is typically subject to review by a medical professional.

Q: Is there an age limit for who can use Nozevet?

As a veterinary-only product, Nozevet is prohibited for human use. For the active ingredient, official guidance for over-the-counter use in humans is typically limited to children 2 years of age and older, following specified dosage guidelines.

Q: What groups of people are specifically advised not to use Nozevet, according to official sources?

Nozevet is classified exclusively as a veterinary medicine. Based on official regulatory status, the entire human population is prohibited from using this product. Its authorization is strictly for use in dogs and cats.

Q: Is there any research looking at the long-term effects of Nozevet?

The research evidence overview includes an Observational Cohort study that followed a large number of participants for up to two years. This type of long-term study design is used to investigate outcomes and effects in a real-world setting over an extended period.

Q: Has Nozevet been studied in diverse patient populations?

The research summary includes a meta-analysis, which is a review of multiple clinical trials. This method involves combining data from various study groups, suggesting that the active substance has been studied across a variety of patient populations.

Q: Why does the packaging for Nozevet say it's not a cure?

Regulatory classification identifies Nozevet as an Antihistamine and Antiemetic. This means its mechanism is focused on providing systemic relief from symptoms like nausea and vomiting. Drugs classified this way treat symptoms but do not permanently resolve or 'cure' the underlying condition.

Q: What should I do if I experience an unexpected reaction to Nozevet?

Official safety information for the veterinary product advises that if unexpected or adverse reactions occur, the use of the product should be stopped immediately. Official guidance indicates that the advice of a medical professional, such as a veterinarian, is typically sought in these situations.

Q: Is Nozevet considered a controlled substance?

Regulatory documents for the active ingredient note that it has a potential for abuse, particularly at higher doses, due to reported hallucinogenic effects. This potential for psychological dependency and tolerance is monitored by regulatory bodies.

Q: Is it common for people to switch from a different drug to Nozevet?

The research evidence includes studies that specifically focused on individuals who had not responded to prior treatments. This suggests that the product may be an option for patients seeking alternatives after other established therapies have not been successful.

Q: Does alcohol consumption affect how Nozevet works?

Regulatory warnings state that consuming alcoholic beverages while using the active substance should be avoided. Alcohol may potentiate the central nervous system depressant effects, which can lead to increased drowsiness and impaired coordination.

Q: Are there any specific warnings for older adults using Nozevet?

Regulatory warnings advise that the active substance should be used with caution in older adults. This group may be more sensitive to common adverse effects such as dizziness, sedation, and a potentially higher risk of falls.

Q: Is Nozevet suitable for children?

Nozevet is formally a veterinary product and is prohibited for human use. For the active ingredient, official guidance for over-the-counter use in humans is typically limited to children 2 years of age and older, following specified dosage guidelines.

Q: Is the efficacy of Nozevet supported by double-blind studies?

Research evidence includes a Phase III Randomized Controlled Trial (RCT). RCTs are considered a high standard of clinical research and often employ blinding techniques to accurately assess a product's effectiveness.

Q: What type of research studies were conducted before Nozevet was approved?

The product was approved based on evidence from a variety of studies, including a Phase III Randomized Controlled Trial, a Meta-analysis of clinical trials, and an Observational Cohort study that examined long-term outcomes in a real-world setting.

Q: Why might a doctor switch a patient from an older drug to Nozevet?

Research evidence includes studies specifically focused on individuals who had not responded successfully to prior treatments. This suggests that the product may be considered an option for patients seeking alternatives after other established therapies have not been successful.

Q: Is it true that Nozevet is meant to be taken regularly?

The official administration guidelines mandate that Nozevet is taken approximately 30 minutes before the event that causes motion sickness. Its primary purpose is to relieve an event-driven condition, rather than continuous, regular daily maintenance use.

Q: How do regulators classify the safety profile of Nozevet?

Regulators classify the safety profile of Nozevet based on the frequency of reported adverse reactions in clinical use. This uses standardized categories such as Common (occurring in 1 to 10 out of 100 animals treated) and Very Rare (occurring in less than 1 out of 10,000 animals treated).

Q: Does Nozevet interact with herbal supplements?

Regulatory guidance for the active substance advises that medical professionals should be informed about all other medications, including vitamins, supplements, and any herbal therapies being taken. This approach allows for a complete assessment of potential drug interactions.

Q: What is the typical time frame for the duration of Nozevet's effect?

While the onset is quick (around 30 minutes pre-event), regulatory information for the active substance indicates that its effects are generally short-acting. The drug is typically expected to stop having an effect within 24 hours, though the duration can be longer in animals with reduced kidney or liver function.

Q: Are there different strengths of Nozevet available?

The official product is offered as a single tablet strength (50 mg). Different dosing amounts required for weight-based administration are achieved by using the score marks to break the tablet into smaller, precise portions.

How should Nozevet be stored and disposed of?

How to Store and Dispose of Nozevet?

The official storage and disposal guidelines for Nozevet tablets are defined by regulatory labeling to maintain product stability and ensure environmental safety.

Storage Requirements

Nozevet must be stored at controlled room temperature, generally below 30 C or 86 F, and must be kept in a dry place protected from excess moisture, light, and heat. Tablets should remain in their original, tightly closed container until use. Storage must strictly be out of the sight and reach of children and pets.

Disposal Instructions

Do not use the product past the expiration date printed on the package. Disposal of unused or expired medicine must comply with local authority waste disposal rules and environmental regulations. It is strictly prohibited to discard Nozevet by flushing it down the toilet or pouring it down the drain.

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

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