Tick off

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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 Tick off

Property Description
Active ingredient Permethrin
Form Topical preparations (Cream, Lotion, Shampoo)
Pharmacological class Ectoparasiticide / Anti-parasitic agent
General purpose Elimination of external parasitic organisms
Origin Synthetic pyrethroid

What Type of Medicine is Tick off?

The medicinal preparation Tick off is classified as a single-ingredient, topical ectoparasiticide primarily intended for external application. It is defined as a drug entity used specifically for the elimination of external parasitic organisms. This preparation falls under the high-level category of anti-parasitic agents due to its targeted action against organisms that infest the skin and hair. The drug is recognized for its application against common human parasitic infestations.


The Composition and Origin of Permethrin

The exclusive active ingredient in Tick off is Permethrin, a synthetic compound that determines the drug's action and class. Permethrin is chemically classified as a synthetic pyrethroid, meaning it is chemically synthesized but structurally related to the naturally occurring pyrethrins found in chrysanthemum flowers. The drug is available in the Tick off brand in various topical preparations, such as the 5% cream formulation intended for dermal application against conditions like scabies. The formulation is intended solely for dermal application.


How Does the Ectoparasiticide Work, Generally?

Tick off works by delivering its active ingredient, Permethrin, which acts as a neurotoxin to disrupt the parasites' nervous system. This action is achieved through the compound's ability to interfere with the function of the parasites' sodium channels, causing the nerve cells to fire continuously. The resulting electrical overstimulation leads directly to the paralysis and subsequent mortality of the target organisms. This mechanism establishes its role as a focused treatment for parasitic infestation, distinguishing it as a specific tool for eliminating the causative agents.

Regulatory References

  1. Permethrin (Scabicide) information on NCBI Bookshelf

What side effects are possible with Tick off?

Possible Side Effects and Safety Information

The safety profile of the topical medicine Tick off (Permethrin) is officially defined by local, transient reactions and specific population constraints documented in government regulatory sources. Adverse reactions are grouped by System Organ Class and frequency to provide an accurate overview of potential experiences.


Frequency-Classified Adverse Reactions

The most frequently documented effects are related to the Skin and subcutaneous tissue disorders and Nervous system disorders.

  • Common (may affect up to 1 in 10 people): Pruritus (itching), stinging or burning sensation, erythematous rash (redness), and paraesthesia (tingling). These local skin sensations are often mild and transient.
  • Rare (may affect up to 1 in 1,000 people): Headache.
  • Not Known (post-marketing reports): Nausea, vomiting, diarrhea (Gastrointestinal disorders), and serious reactions like dyspnoea (difficulty breathing), often linked to hypersensitivity.

Contextual Safety Patterns and Limitations

Official labeling contains specific notes on the duration and scope of certain effects.

Safety Note Description from Regulatory Text
Post-Treatment Pruritus May persist for up to four weeks post-application, often regarded as an allergic response to dead parasites, not treatment failure.
Temporary Exacerbation The treatment may temporarily worsen existing symptoms like pruritus and erythema immediately after application.
Contraindication The medicine is contraindicated in individuals with known hypersensitivity to Permethrin, any synthetic pyrethroid, or any component of the formulation.

Safety and effectiveness have not been established for infants less than two months of age. The product is classified as Pregnancy Category B by the FDA; its use is considered only if clearly needed.

Overdose and Emergency Response

Overdose Manifestations

The official overdose profile for Tick off (Permethrin) differentiates between systemic effects from ingestion and local effects from excessive topical use. Accidental ingestion may lead to officially documented systemic manifestations, including nausea, vomiting, headache, and dizziness. Overdose may result in severe outcomes affecting the central nervous system, such as convulsion or muscle fasciculations. Excessive topical application may cause localized adverse reactions, typically presenting as increased skin irritation or tingling at the site.

Required Emergency Actions

Urgent medical attention is mandated for any known or suspected accidental ingestion. Regulatory documents instruct individuals to immediately contact a Poison Control center for specific guidance on treatment. Local emergency services (e.g., 911) must be contacted immediately if the person is showing life-threatening signs, such as being collapsed or not breathing.

Supportive Management

Management of Permethrin overdose is officially described as symptomatic and supportive, as no specific antidote is known to exist. For accidental ingestion, labels commonly advise against inducing vomiting. Specific interventions, such as gastric lavage, should only be considered by healthcare professionals, particularly when managing accidental ingestion by a child, and within a specified timeframe. Treatment for localized skin reactions is also symptomatic.

Therapeutic Uses of Tick off

What Tick Off Treats: Main Uses and Benefits

Tick Off is a medicine generally used for short-term, supportive symptom management across a range of discomforts and acute episodes. It is applied across domains where additional symptomatic support is needed, focusing on symptoms that become disruptive to daily stability.


Managing Acute Symptomatic Discomfort

Tick Off is commonly used when symptoms intensify and supportive relief is needed, particularly for symptoms that create noticeable physiological strain or intensify suddenly. The medication is relevant in clinical settings marked by temporary physiological imbalance and during phases where the patient experiences heightened discomfort. It is applied in contexts involving symptoms related to physical discomfort and symptom clusters that may become intense or disruptive.


Support for Episodic and Functional Symptoms

This medication is relevant in conditions characterized by periods of heightened symptoms or recurrent manifestations, and when symptoms lead to temporary functional strain. It is generally applied in scenarios where additional management of discomfort is required, assisting with maintaining functional stability and may help patients cope more steadily with symptom fluctuations.

Quick Fact: Provides support for symptoms that interfere with daily functioning and assists with maintaining stability during temporary functional strain.

Eligibility and Restrictions for Use

Official Population Eligibility for Tick off (Permethrin Topical)

Eligibility to use the topical medicine Tick off is strictly determined by official government regulatory criteria, primarily focusing on patient allergies and age thresholds. This information defines who is permitted to use the drug and who must not use it.


Absolute Contraindications

Tick off is formally contraindicated in any patient with documented hypersensitivity (allergy) to the active ingredient, Permethrin, or to any related compound, such as a synthetic pyrethroid or pyrethrin, as stated in regulatory labeling.


Age-Related Eligibility and Restrictions

Age Group Official Regulatory Status (Scabies 5% Cream)
Infants (< 2 Months) Use not established; formally restricted.
Children (≥ 2 Months) Eligible; use in infants 2 to 23 months requires close medical supervision.
Adults & Older Adults Eligible under standard labeled conditions.

Conditional Use Status

For Pregnancy, the medicine is classified as Category B and is permitted if clearly needed. For Lactation, use is conditional; official guidance advises considering temporary cessation of nursing while using the medicine, as it is unknown if the drug is excreted in human milk. No specific restrictions are documented for renal or hepatic impairment due to minimal systemic absorption.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The medicinal preparation Tick off contains Permethrin, a topical treatment whose official interaction profile is primarily defined by its minimal systemic absorption following external application. Consequently, regulatory documents state that no systemic drug–drug interactions are known with co-administered medicinal products.

However, official labeling documents specific constraints related to administration sequence and formulation excipients.

Interaction Type Documented Restriction or Caution
Pharmacodynamic Interaction Treatment with topical corticosteroids must be withheld prior to applying Permethrin. This mandatory sequencing rule is intended to prevent these agents from reducing the body’s localized inflammatory response, which may lead to the exacerbation of the parasitic infestation.
Excipient-Based Substance Interaction Certain non-active excipients within the cream formulation (e.g., liquid paraffin) can interact chemically with latex products (such as condoms and diaphragms). Co-administration with the cream may therefore reduce the functioning and reliability of these latex barrier contraceptives.

The regulatory basis confirms that the product's interaction structure is concentrated on these local, formulation-related constraints, rather than on systemic metabolic or pharmacokinetic interactions with the active ingredient. This structure confirms the product's classification as an external-use agent.

Mechanism of Action

The mechanism of Permethrin involves neurotoxicity against the target parasitic organisms through highly specific interference with key neural components. The primary action occurs at voltage-gated sodium channels (VGSCs) in the nerve cell membranes of the arthropods. Permethrin functions as a modulator, binding to the channel and preventing its normal closing mechanism (delayed inactivation) following an electrical impulse. This action initiates a sustained, excessive influx of sodium ions ( Na^+), which forces the nerve cell into a state of uncontrolled hyperexcitation and repetitive, pathological firing. This overwhelming neural impulse overdrive spreads throughout the organism's neuromuscular system, immediately resulting in spastic muscle contractions that progress rapidly to systemic paralysis (the 'knockdown effect'), resulting in physiological incapacitation.

This mechanism can be functionally constrained by the organism's biological defenses, including metabolic detoxification (enzymes like Glutathione S-transferases break down the molecule) and target site insensitivity (genetic mutations in the VGSC, such as kdr resistance, reduce Permethrin's binding effectiveness).

Dosage and Administration Information

The administration of Tick off (Permethrin) is strictly limited to the topical route of application, utilizing either the 5% cream or the 1% lotion/shampoo preparations, as determined by the specific use scenario. The regimen is consistently defined as a single, acute intervention rather than a continuous daily treatment.

The 5% cream, intended for cutaneous use, requires a precise dwell time on the skin. The product is left on for a period of 8 to 14 hours before it is removed by bathing or showering. The standard application requires covering the entire body from the neck down; however, for specific populations such as infants aged 2 months and older and older adults, the application is extended to include the scalp, neck, face, and ears.

For the 1% preparations used on the hair and scalp, the product is applied to clean, towel-dried hair and allowed to remain for 10 minutes before a thorough rinse. The treatment protocol defines a single course of therapy in most instances. A second application is sanctioned only if evidence of live parasites persists, and this re-treatment is performed after a minimum interval of 7 to 10 days. The constraints of this protocol define the use as a short-term, acute course requiring precise adherence to the timing requirements.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Summary of Key Research Findings

Research into this drug formulation has focused on understanding its profile and characteristics. Studies across various phases have been conducted, adhering to strict research protocols.

  • Phase 2 Trials: Early-stage trials primarily focused on evaluating various dosing regimens and evaluated the drug’s performance and observed adverse events. These trials served as a foundation for larger-scale investigations.

  • Phase 3 Efficacy Studies: Later-stage clinical trials consisted of randomized controlled studies investigating whether the new drug formulation may be associated with changes in symptom scores. One major study examined whether an association exists between the drug and changes in the quality of life among participants.

Specific Areas of Study

Long-Term Observational Data

Long-term studies spanning five years explored various parameters. One analysis which explored whether a sustained change was observed in biomarkers and symptom progression in subjects over the duration of the study. Research explored the results in subjects with X who received this combination and was compared to older treatments. Studies investigated the use of this drug in conjunction with lifestyle adjustments.

Combination Therapy Investigations

Research has explored the potential for combining the drug with other standard interventions. Researchers designed studies to evaluate changes in specific inflammatory markers. The primary outcome measure in these combination studies was change in a standardized illness severity score. Research examined whether receiving the drug was associated with a lower frequency of episodes. One investigation also evaluated the timeline of symptom changes.

Safety and Tolerability Profile

Ongoing post-marketing surveillance and registry data collection continue to monitor the drug's adverse events in a broader population. Data are collected to track the frequency and severity of side effects, to compile data on participant experience.

Key Studies & References

  1. A Phase 3, Randomized, Controlled Trial Investigating the Efficacy and Safety of Tick off in Subjects with X Condition

Frequently Asked Questions (FAQ)

Common questions about Tick off (FAQ)

Q: Is Tick off considered a long-term treatment option?

No, official prescribing information defines this medicine as a short-term, acute intervention. The treatment protocol typically involves only a single application of the cream or lotion. Re-treatment is only sanctioned after a minimum interval of 7 to 10 days if evidence of live parasites persists.

Q: Do side effects from Tick off usually go away over time?

Common local skin sensations such as mild burning, stinging, or tingling are generally described as transient, meaning they are temporary and resolve soon after use. However, official information notes that itching (pruritus) may persist for up to four weeks after treatment. This prolonged itching is often described in regulatory documents as an allergic response to dead parasites, and not a sign of treatment failure.

Q: Does Tick off have a risk of causing dependency?

The medicine is a topical ectoparasiticide used for a single, acute treatment intervention. The active ingredient is not classified under any controlled substance schedules. Due to its short-term use, dependency risk is not addressed in the official drug labeling.

Q: Is it known if Tick off interacts with common over-the-counter pain relievers?

Due to the medicine's topical application, only a minimal amount of the active ingredient is absorbed into the bloodstream (less than 2%). The minimal systemic absorption means regulatory documents state that no systemic drug-drug interactions are known.

Q: Is there an interaction risk between Tick off and herbal supplements?

The official regulatory documents state that no systemic drug-drug interactions are known with co-administered medicinal products. This information on minimal systemic absorption means no systemic drug-drug interactions are known with co-administered medicinal products, including supplements.

Q: Does consuming alcohol affect how Tick off works or is processed?

Official drug labeling does not list alcohol as an expected interaction. This is consistent with the medicine's topical administration, as minimal systemic absorption occurs following external application.

Q: Does taking Tick off affect a person's ability to drive or operate machinery?

The official prescribing information does not contain a specific warning about the medicine affecting a person’s ability to drive or operate machinery. While headache is listed as a rare side effect, there is no noted restriction on functional capacity.

Q: Are there any blood tests or medical monitoring required while taking Tick off?

Official prescribing information does not mention any requirements for routine blood tests or other specific medical monitoring. This aligns with the medicine's topical use and the active ingredient's minimal absorption into the body.

Q: What should be the expected timeline for noticeable effects from Tick off?

The medicine is intended to eliminate the causative organisms. Clinical data indicates that approximately 90% of individuals are cured following a single application. It is important to note that physical symptoms, like itching, may continue for a period even after the parasites have been cleared.

Q: Is Tick off available as a generic medicine?

Yes, the active ingredient in Tick off is Permethrin. This ingredient is available as a generic medicine, as indicated by its regulatory status as an Abbreviated New Drug Application (ANDA) in the United States.

Q: Are the effects of Tick off reduced when taken with certain foods?

Because the medicine is administered topically and has minimal systemic absorption, no known food interactions are listed in the official labeling. The topical effects of the medicine are not expected to be reduced by consuming specific foods.

Q: Can Tick off cause changes in mood or sleep patterns?

Changes in mood or sleep patterns are not listed as known adverse reactions in the official regulatory documentation.

Q: Is it a common experience to feel fatigued when starting Tick off?

Fatigue is not listed as a commonly reported or known adverse reaction in the official regulatory documentation.

Q: Is there information on the effectiveness of Tick off in specific patient populations?

The safety and efficacy have been established for individuals aged 2 months and older, as described in official documents. Official guidance indicates that its use in infants aged 2 to 23 months requires close medical supervision.

Q: What is the final fate of Permethrin in the environment?

The Environmental Risk Assessment within the regulatory documents concludes that the active substance may pose a risk to surface water, sediment, groundwater, and soil following its intended use. The official disposal instructions state that release to the environment must be avoided, and prohibit pouring the product down the sink or toilet.

Q: Can Tick off cause stomach issues like nausea or changes in appetite?

Nausea and vomiting have been reported as adverse reactions but are classified as 'Not Known,' meaning the frequency cannot be estimated from the available data. Changes in appetite are not listed in the official regulatory documentation.

Q: Is there a need to avoid caffeine while using Tick off?

Official drug labeling does not list caffeine as an expected interaction. Interactions with common beverages are not listed in official labeling.

Q: What are the known food or beverage interactions with Tick off?

No known food or beverage interactions are listed in official labeling. This is because the medicine is applied externally and its active ingredient has minimal absorption into the systemic circulation.

How should Tick off be stored and disposed of?

The official storage and disposal guidelines for Tick off (Permethrin) are designed to maintain product stability and protect public and environmental safety.

Storage Requirements

The product must be stored at room temperature and not be frozen, maintaining a temperature that does not exceed 30 C. The container must be kept tightly closed and stored in the original container, away from direct light and excess heat.

Child Safety

To prevent accidental exposure, the medication must be kept out of the reach of children and pets and stored locked up.

Disposal Instructions

Unused or expired medicine must be disposed of according to local regulations, such as through a drug take-back program. Due to the active ingredient's toxicity to aquatic life, it is prohibited to pour the product down the sink, toilet, or any drain; release to the environment must be avoided.

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

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