Reverin

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Reverin

Method of action: Ophthalmologicals

Treatment option: Blepharitis, Keratitis, Trachoma

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 Reverin

Property Description
Active Ingredient Oxytetracycline Hydrochloride
Form Injectable solution
Pharmacological Class Tetracycline Antibiotic (Broad-Spectrum)
Common Use Control of bacterial infections
Origin Semi-synthetic

What Type of Anti-Infective is Reverin?

Reverin is the trade name for a pharmaceutical product containing the active substance Oxytetracycline Hydrochloride, which is scientifically classified as a broad-spectrum antibiotic. This compound is a semi-synthetic derivative, meaning its chemical structure is based on a naturally produced microbial substance (polyketide) but has been refined for therapeutic use. As a member of the tetracycline class, this medicine is clinically recognized for its high efficacy against a wide range of susceptible bacterial pathogens. The preparation serves the general purpose of managing systemic bacterial infections.

Composition and Pharmaceutical Form

The medicine's core composition centers on the Oxytetracycline molecule, which is stabilized as the Hydrochloride salt to optimize its solubility and stability in solution. Reverin is generally supplied as a sterile, injectable solution, prepared for administration via the parenteral route. Many products are notably developed as long-acting (LA) injectable solutions, a formulation technique designed to ensure a gradual and prolonged release of the active ingredient into the system. This sustained action is a key differentiating factor, enabling the maintenance of therapeutic concentration over several days from a single administration.

Understanding the Drug's General Purpose

The fundamental purpose of this medicine is to control and stop the proliferation of susceptible bacteria that cause infection. Its core function is rooted in its protein synthesis inhibitor action, which provides a definitive bacteriostatic effect. This mechanism means the drug intervenes precisely to prevent the bacteria from multiplying. By effectively halting the growth of the microbial population, Oxytetracycline critically aids the body's natural defense mechanisms in eliminating the organisms and successfully managing the overall disease process.

Regulatory References

  1. Oxytetracycline - WHO/JECFA Monograph

What side effects are possible with Reverin?

Possible Side Effects and Safety Information

The safety profile of Oxytetracycline, the active substance in Reverin, is formally documented in government regulatory sources, classifying known adverse reactions by their likelihood of occurrence and the affected organ system.

Officially Documented Adverse Reactions

The most frequently reported adverse events are categorized within Gastrointestinal Disorders, including nausea, vomiting, and diarrhea, often listed as common. Reactions affecting the Skin and Subcutaneous Tissue include photosensitivity, which is explicitly linked in regulatory documents to exposure to direct sunlight or ultraviolet light.

Less common but officially listed effects involve the Immune System, such as hypersensitivity reactions like urticaria. Adverse effects documented within the Nervous System include headache, dizziness, and the reported risk of increased intracranial pressure (pseudotumor cerebri).

Serious Adverse Reactions and Safety Constraints

The regulatory profile highlights several rare but clinically significant adverse reactions, including severe systemic responses like anaphylaxis and serious gastrointestinal issues such as pseudomembranous colitis and pancreatitis.

Critical constraints apply to specific populations. The use of this medicine in pediatric patients (infants and children) is strictly associated with the potential for permanent tooth discoloration and enamel hypoplasia due to deposition in developing teeth. Caution is advised for patients with renal impairment due to the risk of active substance accumulation. Furthermore, the risk of superinfection (overgrowth of non-susceptible organisms) is a documented constraint associated with the use of antibiotics.

Overdose and Emergency Response

Overdose and When to Seek Help

The official regulatory documents define Oxytetracycline overdose by the potential for severe escalation of adverse effects and life-threatening systemic toxicity.

Severity and Manifestations Official Regulatory Statement
Documented Presentations Overdosage may result in exaggerated manifestations including severe gastrointestinal distress and signs of intracranial hypertension (e.g., severe headache and visual disturbances).
Serious Outcomes High systemic exposure poses a risk of acute renal failure (nephrotoxicity) and fatty liver degeneration (hepatotoxicity). These complications necessitate immediate and intensive medical management.
Population Notes Individuals with pre-existing renal or hepatic impairment face an increased risk of severe toxicity and drug accumulation following high-dose exposure.

Emergency Action and Management

Regulatory guidance mandates that immediate medical attention must be sought if an overdose is suspected, and a Poison Control Center should be contacted right away. This urgency is driven by the potential for severe, life-threatening organ damage.

Overdose management is restricted to symptomatic and supportive treatment because no specific antidote is known. The procedural steps include immediate discontinuation of the drug. Intensive hospital monitoring is required, focusing on periodic laboratory evaluation of hepatic and renal function to manage potential organ toxicity. The prompt recognition of overdose symptoms and immediate seeking of professional medical care are crucial due to the severe nature of the documented systemic risks.

Therapeutic Uses of Reverin

What Reverin Treats: Main Uses and Benefits

The therapeutic uses of Oxytetracycline cover numerous bacterial pathogens. This medicine is commonly applied across domains involving specific pathogens and heightened patient discomfort.

Reverin is generally used for managing systemic infections, and is used in situations involving specific classes of susceptible pathogens, including Rickettsial diseases (such as typhus), Chlamydial infections (like trachoma and psittacosis), and Mycoplasma pneumonia. It is also a relevant broad-spectrum alternative for patients with documented Penicillin allergies and is applied in the management of chronic conditions such as acne and rosacea. The medicine helps address symptoms related to systemic imbalance and supports the body during symptomatic periods.

“The application of this medicine is relevant in contexts involving heightened systemic burden and helps address symptom clusters that may become intense or disruptive.”

This therapy helps provide supportive relief during acute episodes, and for chronic conditions, it may assist with maintaining functional stability and easing the persistent symptomatic burden associated with inflammation.

Quick Fact: Symptom Support for Systemic Discomfort Reverin is commonly used when symptoms related to systemic imbalance, such as persistent fever and fatigue associated with atypical infections, interfere with routine activities.

Regulatory References

  1. NIH DailyMed drug label

Eligibility and Restrictions for Use

Who Can and Cannot Use Reverin? (Official Regulatory Information)

The eligibility for using Reverin (Oxytetracycline Hydrochloride) is formally defined by regulatory authorities based on a number of population restrictions, particularly absolute contraindications and conditional use requirements.

Category Regulatory Status Affected Population
Absolute Prohibition Contraindicated Individuals with known hypersensitivity to any drug in the tetracycline class; patients concurrently receiving systemic retinoids (e.g., isotretinoin).
Age Restriction Contraindicated / Not Recommended Children under 8 years of age (except for specific severe or life-threatening infections).
Reproductive Status Contraindicated / Use Avoided Women in the last half of pregnancy (second and third trimesters) and nursing mothers (lactation).
Conditional Use Caution Required Patients with significantly impaired renal function (severe kidney problems) or hepatic impairment (liver dysfunction).

Age-Related Eligibility Rules

Adult Patients (18 years and older) are generally eligible for use. However, use is formally not recommended in children aged 8 years and under due to the documented risk of permanent tooth discoloration and skeletal effects. The only exception is when treating certain severe, life-threatening conditions where alternative agents are unavailable.

Connection to the overall eligibility profile

Regulatory documents establish the drug's non-eligibility profile based on its systemic risks, specifically dictating absolute exclusions for allergic populations and for those whose physiological or developmental status (e.g., pregnancy, early childhood) makes them uniquely susceptible to the drug’s known adverse effects on developing bone and teeth.

What should I know about interactions with other medicines?

Interactions with other medicines and products

This medication belongs to the tetracycline class of antibiotics, and its effectiveness can be significantly altered by certain medicines, supplements, or food products. The official drug interaction profile is primarily structured around substances that interfere with the absorption of the active ingredient and those that affect its overall therapeutic effect.

Interacting Product Category Official Interaction Constraint
Mineral/Cation-Containing Products (e.g., Iron supplements, Antacids containing Aluminum, Calcium, or Magnesium, certain laxatives) Co-administration is generally restricted due to the potential for chelation, which can form non-absorbable compounds. This process substantially reduces the amount of the antibiotic absorbed into the bloodstream, potentially leading to treatment failure. A mandatory time separation is required when administering this drug with these products.
Oral Anticoagulants (e.g., Warfarin) Concurrent use may require close monitoring and possible adjustment of the anticoagulant dosage. The tetracycline class can enhance the effects of these blood thinners.
Penicillin-Class Antibiotics Regulatory warnings state that the bacteriostatic action of tetracyclines may interfere with the bactericidal effect of penicillin. Co-administration should be avoided if possible.

These official interaction domains establish critical requirements for use. The primary constraint is the strict need to administer this antibiotic separately from all products containing polyvalent cations, such as iron supplements, to maintain the drug’s effectiveness. Other constraints include careful patient monitoring when used alongside blood thinners or penicillins.

Mechanism of Action

Selective Blockade of Bacterial Protein Synthesis

The mechanism of Oxytetracycline (Reverin) initiates at the molecular level inside the bacterial cell by targeting the prokaryotic ribosome. Oxytetracycline reversibly binds to the 30S ribosomal subunit and physically blocks the crucial A-site (aminoacyl-tRNA acceptor site). This targeted molecular interference prevents the docking of transfer RNA (tRNA) molecules, resulting in the arrest of protein production vital for bacterial function.

Induction of Microbial Stasis

The consequence of halting protein synthesis is bacteriostasis—the physiological arrest of microbial growth and replication. This effect limits microbial multiplication and functionally alters the host-pathogen balance. This growth limitation requires the functional clearance by the host’s immune system to eliminate the non-replicating bacterial population.

Dosage and Administration Information

The official instructions for using Reverin (an oxytetracycline injectable solution) specify weight-based dosing and strict administration routes for livestock (cattle, sheep, goats, and pigs).

Administration and Dosage Forms

  • Approved Routes: Administration is by Intramuscular (IM), Subcutaneous (SC), or Intravenous (IV) injection. However, the long-acting formulation (Reverin LA 230) must be given by the IM route only; if administered IV, the intended long-acting effect will not be achieved.
  • Dosing Rules: The required volume is calculated based on the animal's mass and the product concentration (135~ mg/ mell or 230~ mg/ mell). The single long-acting dose is 1~ mell/10~ kg body mass.

Procedural and Scheduling Requirements

  • Injection Site Limits: The total volume injected at a single site must be strictly limited: not more than 20~ mell for cattle, 10~ mell for pigs, and 5~ mell for sheep and goats (Reverin LA 230). For adult animals receiving the long-acting dose, the total dose must be divided and administered at two separate injection sites.
  • Schedule: The Normal Use regimen is administered daily for 3 days. The Long-Acting Use regimen requires only one single injection, which may be repeated after 72 hours (3 days) if deemed necessary, with treatment to be continued until recovery.
  • Special Conditions: The injection should be administered deep into the muscle, preferably in the mid-neck area. The site must be massaged post-injection. For piglets under 10~ kg, the SC route is preferable. The long-acting product must not be administered to piglets on the same day as iron injection.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Reverin


Evidence for Use in Atypical Bacterial Infections

Research has explored the medicine's role in conditions caused by susceptible atypical pathogens, such as Rickettsial diseases (like typhus) and Chlamydial infections. The evidence includes historical observational studies and clinical cohort data, which is typical for conditions with long-established treatments. Studies tracked clinical parameters, including changes in body temperature over time, and focused on the acute observation phase of the illness. The evidence quality varies across studies compared to modern large-scale randomized controlled trials, and long-term effects are not fully established.


Evidence for Use in Chronic Skin Conditions

For systemic evaluation in chronic inflammatory conditions like acne and rosacea, the evidence base includes Randomized Controlled Trials (RCTs) and systematic reviews. These studies monitored populations over defined time intervals, with follow-up durations extending to several months for maintenance phases. Research was conducted using objective measures, such as monitoring counts of inflammatory lesions and standardized grading scales. Findings describe patterns observed in the studies related to these objective scores over time.


Research Gaps and Areas of Uncertainty

The evidence landscape highlights limitations, particularly in the reliance on older non-randomized data for some acute infection indications. Data for certain groups remain insufficient, especially in some pediatric populations and older adults with complex health profiles, meaning subgroup findings are uncertain. Additionally, a critical area of ongoing research is the study of the antimicrobial resistance (AMR) burden that may be associated with prolonged use. The study results reflect the specific conditions under which they were conducted and do not determine whether an individual will respond similarly.

Key Studies & References

  1. Tetracyclines in the Modern Era: Global Consumption, Antimicrobial Resistance, Environmental Occurrence, and Degradation Techniques
  2. Tetracycline - StatPearls (Overview of tetracycline class indications, adverse effects, and resistance)
  3. RECOMMENDATIONS FOR TREATMENT OF CHLAMYDIAL INFECTIONS - WHO Guidelines for the Treatment of Chlamydia trachomatis
  4. 699. Oxytetracycline (WHO Food Additives Series 27) - INCHEM (Toxicology and general data)

Frequently Asked Questions (FAQ)

Common questions about Reverin (FAQ)

Q: Are there any common foods or drinks that interact negatively with Reverin?

A: Regulatory documents state that Reverin's absorption may be significantly reduced when taken with food, especially milk and dairy products because they contain calcium. Products containing other minerals like iron, aluminum, and magnesium, often found in certain supplements or antacids, can also interfere with how much of the drug is absorbed into the bloodstream. Official product labeling generally advises administering the medicine separately from these products to ensure optimal absorption.

Q: What should I do if I think I'm experiencing an allergic reaction to Reverin?

A: Official product information documents that serious adverse reactions, including severe systemic responses like anaphylaxis, are possible but rare. If signs of a serious allergic reaction, such as difficulty breathing, hives (urticaria), or swelling, are observed, it is advised to discontinue the product and seek immediate medical care.

Q: What should I avoid doing while I'm taking Reverin?

A: Official warnings advise avoiding excessive exposure to direct or artificial sunlight (UV light), as the medication can cause photosensitivity, increasing the risk of sunburn. Additionally, concurrent use or co-administration with products containing polyvalent cations, such as iron supplements or certain antacids, must be strictly separated by time or avoided to maintain the drug’s effectiveness.

Q: Does Reverin cause changes in appetite or weight?

A: Regulatory information lists loss of appetite (anorexia) as a documented adverse event associated with the use of tetracycline-class antibiotics. While weight change is not typically listed as a primary side effect, the most commonly reported issues are Gastrointestinal Disorders, including nausea and vomiting, which can affect eating habits.

Q: Why do some people get a headache when they first start Reverin?

A: Official safety data lists headache and dizziness as documented adverse reactions affecting the nervous system. In rare cases, the drug is associated with a documented risk of increased intracranial pressure (sometimes called pseudotumor cerebri), which can manifest as a severe headache. This information is detailed in the official product labeling.

Q: Why is Reverin used for [specific condition/type of symptom]? Does it only work for that?

A: Reverin (Oxytetracycline) is a broad-spectrum antibiotic indicated for treating a wide variety of bacterial infections caused by susceptible organisms. Its approved uses include treatments for Rickettsial diseases, Chlamydial infections, and chronic inflammatory skin conditions. The full range of approved uses is detailed in the official prescribing information.

Q: Can older people safely take Reverin?

A: The official documentation advises that special care is necessary when the drug is used by older patients. Caution is specifically required for individuals with existing impaired renal (kidney) or hepatic (liver) function, as these issues, which may be more common in the elderly, can lead to the drug accumulating in the body.

Q: What happens if I accidentally miss a dose of Reverin?

A: For oral forms of the medicine, the general recommendation is that if a dose is missed, it should be skipped if it is almost time for the next scheduled dose. Regulatory information advises against taking a double dose to compensate. It is always important to follow the specific instructions provided by the prescribing professional.

Q: Can Reverin be used long-term, or is it only for short courses?

A: While many uses are for short courses, the regulatory documents address long-term therapy by stating that it requires periodic professional monitoring. This monitoring includes laboratory evaluations of organ systems like the blood-forming, renal, and hepatic systems to check for potential adverse effects associated with prolonged use.

Q: Is there a generic version of Reverin available yet?

A: Yes, the active substance in Reverin, Oxytetracycline, is an established and widely used compound. The drug is available globally in various generic formulations and under different trade names, in addition to the branded product.

Q: Why do some people say Reverin didn't work for them?

A: Official warnings state that the use of antibiotics like this can lead to the selection or overgrowth of non-susceptible organisms, known as superinfection. This potential for microbial overgrowth can cause the treatment to be ineffective, or it may result from the infection being caused by a drug-resistant strain of bacteria.

Q: Will Reverin affect my ability to drive or operate machinery?

A: Official safety information indicates that this drug can cause adverse effects such as dizziness and headache. If effects like dizziness or headache are experienced, caution is necessary, and operating vehicles or machinery should be avoided until the drug’s effects on the individual are known.

Q: How long does Reverin stay in your system after you stop taking it?

A: The time it takes for the drug concentration to decrease by half (the elimination half-life) is approximately 6 to 8 hours for the active ingredient, Oxytetracycline. This pharmacokinetic information is found in the official drug summary documents.

Q: Is it possible for Reverin to stop working over time?

A: Regulatory documents include a formal warning that the use of any antibiotic carries a risk of contributing to the development of drug-resistant bacteria. If an infection is caused by these resistant strains, the medication may lose its effectiveness over time.

Q: Are there lifestyle changes that can improve Reverin's effectiveness?

A: Official patient information often recommends ensuring adequate fluid intake, especially when taking oral forms of the drug. Additionally, following the time separation guidelines for mineral-containing products (like iron and antacids) is important, as it helps ensure optimal absorption of the antibiotic into the bloodstream.

Q: What is the half-life of Reverin?

A: The elimination half-life of the active ingredient, Oxytetracycline, is officially documented as being approximately 6 to 8 hours. This indicates how long it takes for the concentration of the drug in the system to reduce by half.

Q: Can Reverin affect the results of blood tests?

A: Yes, the drug's anti-anabolic properties are documented to potentially cause an increase in blood urea nitrogen (BUN) levels, especially in individuals with existing kidney issues. The medication may also affect plasma prothrombin activity, which is an important factor when monitoring patients on blood thinner medications.

Q: Are there any warnings about using Reverin before surgery?

A: Regulatory warnings indicate that concurrent use of the tetracycline class of antibiotics with the anesthetic Methoxyflurane has been reported to result in severe nephrotoxicity (kidney damage). For this reason, co-administration with this anesthetic is generally avoided.

Q: Are there any known interactions between Reverin and herbal supplements?

A: While official information does not list all herbal supplements individually, the same caution applies to mineral-containing products: herbal supplements containing polyvalent cations (minerals) may interfere with drug absorption. Additionally, some herbal products, like St. John's Wort, may increase the risk of photosensitivity already associated with the drug.

Q: Is Reverin known to interact with birth control pills?

A: Current official regulatory documentation for the tetracycline class generally indicates that any interaction resulting in reduced effectiveness of oral contraceptives is either not significant or has not been reliably confirmed for all members of the class. Nonetheless, users should remain aware of potential drug interaction warnings.

Q: Do people often need a second course of Reverin for the same condition?

A: For certain infections, the long-acting injectable formulation is designed to be a single dose, which may be repeated after 72 hours if necessary, based on the assessment of the infection's status. The decision to initiate a subsequent course is made clinically, often in response to an insufficient initial response or a recurrence of the infection.

Q: Can Reverin worsen any pre-existing health conditions?

A: Yes, the official warnings advise that patients with significantly impaired renal or hepatic (kidney or liver) function must use the medicine with caution due to the risk of accumulation of the active substance. Furthermore, use is contraindicated in patients with a known hypersensitivity to any drug in the tetracycline class.

Q: How do doctors decide who is a good candidate for Reverin?

A: According to official prescribing information, a patient is considered a candidate for Reverin if they have an infection known or highly suspected to be caused by a susceptible type of bacteria. They must also not have any absolute contraindications, such as an allergy to tetracyclines or concurrent use of systemic retinoids, that would prohibit its use.

How should Reverin be stored and disposed of?

How to Store and Dispose of Reverin (Oxytetracycline HCl)

The storage and disposal of Reverin, an oxytetracycline injectable solution, must follow strict regulatory guidelines to maintain its stability and ensure environmental safety.

Storage Requirements

The medicine must be stored at or below 25 °C (77 °F) and explicitly should not be frozen. To prevent degradation, the product must be protected from light and stored in a cool, dry place. It must be kept in the original container, which should be kept tightly closed, and kept out of the reach and sight of children.

Disposal Instructions

Official labeling requires that any unused or expired Reverin must be disposed of according to local regulations. It is strictly mandated that the product must not be thrown into watercourses or wastewater to prevent contamination, emphasizing regulated environmental waste handling.

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

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