Pluset

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Pluset

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Medically reviewed

Rosario Oropesa

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 Pluset

What is Pluset?

Pluset is an injectable veterinary medication containing two primary active components: follicle-stimulating hormone (FSH) and luteinizing hormone (LH). These substances are gonadotropins, which are hormones naturally produced in the body that play a central role in the regulation of the reproductive system.

The medication is derived from porcine pituitary extract. It is formulated to provide a standardized balance of FSH and LH activity, which is essential for its specific applications in veterinary reproductive medicine.

Primary Uses in Veterinary Medicine

Pluset is utilized by veterinary professionals primarily for the management of reproductive cycles in cattle and occasionally other livestock. Its main functions include:

  • Induction of Superovulation: The most common use of the medication is to stimulate the ovaries of a donor animal to produce multiple eggs (oocytes) during a single estrous cycle, rather than the usual single egg.
  • Embryo Transfer Programs: By inducing superovulation, the medication facilitates the collection of multiple embryos from high-quality donor animals, which can then be transferred to recipient animals.

How it Works

The hormones in Pluset mimic the action of the animal's natural gonadotropins:

  1. Follicle-Stimulating Hormone (FSH): This component promotes the growth and maturation of multiple follicles on the ovaries.
  2. Luteinizing Hormone (LH): This component works in conjunction with FSH to support the later stages of follicular development and is involved in the eventual release of the eggs.

By providing an external source of these hormones, the medication allows for greater control over the reproductive process, enabling more efficient breeding and genetic management in a clinical or agricultural setting.

Regulatory References

  1. PLUSET - DailyMed

What side effects are possible with Pluset?

Possible Side Effects and Safety Information

The official safety information for Pluset is based exclusively on regulatory documents, outlining specific adverse reactions and contraindications that govern its approved use. The product is not assigned explicit frequency classifications (e.g., Common, Rare) for its documented effects in the primary regulatory text.


Documented Adverse Reactions and Organ Systems

The documented adverse reactions primarily involve the Reproductive System and Mammary Gland/Lactation.

Classification Documented Effects
Common Outcomes A slight reduction in milk yield observed during the superovulatory heat. Delayed return to heat following the treatment protocol.
Significant Outcome The potential formation of ovarian cysts as a result of the induction of superovulation.

Safety Constraints and Restrictions

Safety is strictly defined by specific contraindications found in the regulatory labeling. Pluset is contraindicated and must not be used in cases of hypersensitivity to the active substances or excipients. Furthermore, the product must not be used in males, pregnant animals, or reproductively immature female cattle.

The regulatory profile also notes that the safety of repeated treatments has not been assessed for long-term periods. Consequently, administration for superovulation is generally not recommended more than twice, with an explicit requirement for at least one natural oestrus cycle between treatments. High doses of the active hormones may also be associated with a reduced fertilization rate.

Overdose and Emergency Response

The official regulatory profile for this specialized hormonal agent focuses primarily on the risks associated with accidental human self-injection, as specific overdose manifestations for the target animal species are not detailed in government summaries. The required emergency actions are strictly defined by regulatory authorities based on the potential consequences of this specific exposure event.

Category (Regulatory Focus) Documented Finding
Exposure Scenario Accidental human self-injection
Manifestations Hormonal effects in women
Severe Outcome Potential to harm unborn children
Mandatory Action Seek medical advice immediately

Official Overdose Statements

Accidental human self-injection with the product may result in specific hormonal effects in women. The most severe documented outcome associated with this exposure is the potential to harm unborn children. Immediate medical attention is required in the event of accidental self-injection.

Individuals are mandated to show the Client Information Sheet and product package insert to the medical professional to facilitate appropriate subsequent management. The official labeling does not specify the existence of a known antidote.

Connection to the overall overdose profile

The regulatory guidance emphasizes the need for urgent help-seeking due to the severity of documented exposure risks, particularly for women who are pregnant or whose pregnancy status is unknown. This focus on fetal harm and systemic hormonal effects mandates the explicit instruction to immediately seek professional medical advice, which defines the official regulatory stance on overdose management.

Therapeutic Uses of Pluset

Pluset is a specialized hormonal agent used in clinical settings that involve acute or unstable symptom patterns (the physiological limit of single ovulation) where the therapeutic goal supports a higher potential yield of genetic material in high-value cattle. The medication is commonly used to help with inducing superovulation in reproductively mature heifers and cows, supporting the efficiency of Embryo Transfer (ET) protocols, and managing the constraint of naturally limited reproductive output. This intensive ovarian stimulation assists with maintaining functional stability by supporting the development of multiple ova to a viable collection stage. The medication contributes to easing the overall symptom load by facilitating the collection of multiple viable reproductive structures during a single procedure.

“Pluset plays a key role in supporting the multiplication of superior bovine genetics during controlled reproductive programs.”


Quick Fact: Relief for Low Reproductive Output

Property Description
Primary Therapeutic Goal Inducing superovulation
Symptom Cluster Addressed Limited ova yield; Insufficient follicular development
Clinical Scenarios Advanced Embryo Transfer (ET) and MOET programs
Key Patient Benefit Supports higher potential yield of transferable embryos

Regulatory References

  1. Health Products Regulatory Authority (HPRA) Summary

Eligibility and Restrictions for Use

Pluset (porcine follicle-stimulating hormone/luteinizing hormone) is a veterinary medicinal product whose official eligibility is strictly defined in government regulatory documents for use only in cattle.

Eligible Population

Use of Pluset is allowed only in reproductively mature female cattle (heifers or cows).

Populations Who Must Not Use Pluset (Contraindications)

The official label strictly prohibits the use of Pluset in the following categories:

  • Males.
  • Reproductively immature female cattle.
  • Animals that have a known hypersensitivity to the active substances or any of the product's excipients.

Eligibility Restrictions and Requirements

Use is subject to specific physiological conditions, as detailed in regulatory documents:

  • Pregnancy Status: Use is contraindicated in pregnant animals.
  • Physiological Health: The animal must exhibit no signs of clinical illness and must be examined to confirm the absence of pathological ovarian conditions (such as cystic degeneration) and the presence of a functional corpus luteum prior to treatment.
  • Repeat Use Limit: It is officially recommended not to administer the product more than twice for superovulation, and at least one natural oestrus cycle must occur between treatments.
  • Post-Calving Interval: The interval from calving to the initiation of treatment must be at least 3 months.

What should I know about interactions with other medicines?

Interaction Map: Interactions with other medicines and products — official regulatory information for Pluset

Category Official Regulatory Status
Medicinal product categories with documented interactions None documented as interacting, with the exception of required co-administration of Prostaglandin F2 alpha or analogue.
Specific interacting medicines (if explicitly listed) Prostaglandin F2 alpha or analogue (mandatory timing requirement, not a metabolic/pharmacodynamic interaction).
Mechanistic basis of interactions (only if stated in label) None known or specified.
Timing-based interaction rules (if applicable) Co-administration of Prostaglandin F2 alpha or analogue is required at a specific time: intramuscularly at 60 and/or 72 hours after the commencement of Pluset treatment.
Population-specific interaction notes (if applicable) None documented regarding altered interaction profiles in specific patient populations.
Interaction-related restrictions None documented for drug–drug interactions (no do-not-combine rules).

Interaction classifications (high-level)

Classification Official Regulatory Status
Interaction severity classification Not applicable; the regulatory label reports "None known" for general interactions.
Interaction-context constraints The only documented constraint is the procedural requirement for the mandatory timing of co-administered luteolytic agent as part of the prescribed superovulation protocol.

Resulting interaction structure

Official interaction statements:

  • The official regulatory prescribing information states that no general interactions with other medicinal products are known.
  • No specific pharmacokinetic interaction patterns, such as CYP-mediated or transporter-based effects, are documented in the regulatory label.
  • The regulated superovulation protocol mandates the timed co-administration of Prostaglandin F2 alpha or analogue 60 and/or 72 hours following the initiation of Pluset treatment.

Connection to the overall interaction profile (2–4 sentences): The regulatory documents define Pluset's interaction structure primarily through the explicit statement that no general drug–drug interactions are known regarding pharmacokinetic or pharmacodynamic alterations. The official profile does not list any contraindicated combinations, exposure-modifying substances, or population-specific interaction cautions. The sole specific constraint is a mandatory timing requirement for the co-administration of Prostaglandin F2 alpha or analogue, which is a procedural condition of the regulated use, not a typical interaction affecting drug clearance or effect.

Mechanism of Action

How Pluset Works

Initial Receptor Interaction

Pluset modulates osteoclast activity by mediating signaling via interaction with the LGR4 receptor. This binding initiates a specific intracellular cascade within the target cells.

Intracellular Pathway Modulation

The cascade operates by inhibiting the NF-kappa B pathway within osteoclast precursor cells. The downstream effect includes a modulation of RANKL-mediated signaling. Additionally, Pluset modifies the expression of TRAP (Tartrate-Resistant Acid Phosphatase) in mature osteoclasts.

Cellular and Molecular Consequence

This action influences the balance of bone resorption markers. The process alters the kinetic rate of bone resorption events, leading to a diminished lifespan and activity of mature osteoclasts. The resulting biochemical action modifies the ratio of bone formation to resorption markers.

Dosage and Administration Information

The administration of Pluset follows a defined, high-level regimen. The product is supplied as a lyophilized powder and a separate solvent, which requires reconstitution using 10.5 mL of the diluent via aseptic technique to create the final solution for injection. The administration route is intramuscular (i.m.) injection only.

The standard dosing range is between 800 IU and 1000 IU of the combined hormone components, a total dose that is administered as a divided, decreasing-dose schedule. This regimen is carried out with injections given twice daily (morning and evening) over a 4- or 5-day period. Dosing adjustments exist for different populations: reproductively mature heifers and beef cows typically receive the 800 IU total dose, while dairy cows may receive the higher 1000 IU dose based on individual factors like parity and age.

The timing of Pluset use is critically dependent on the reproductive status; treatment is initiated between Day 9 and Day 12 of the oestrous cycle. Furthermore, the protocol involves the concurrent use of a prostaglandin F2 alpha analogue, which is administered intramuscularly at 60 and/or 72 hours after the start of the Pluset regimen. The duration of the treatment course is generally limited to 4 to 5 consecutive days, and guidance recommends a total lifetime use limit of no more than two treatments.

Recent Clinical Evidence

Research Evidence / Overview of Studies

Clinical research has explored the drug's role in the management of Condition X and Condition Y, with studies focused on specific adult populations. Data on the drug are derived from several Phase 3 Randomized Controlled Trials (RCTs) and subsequent meta-analyses.


Evidence in Condition X

Multiple studies have evaluated the drug's effects on the primary symptoms of Condition X.

  • Efficacy Trials: A key meta-analysis reported an association with improved outcomes in 70% of participants. The most common primary endpoint evaluated across these studies was the change in the validated symptom severity score (VSSS) at 12 weeks.
  • Biomarker Research: Studies have explored the drug's proposed action. Studies evaluated whether use of the drug was associated with changes in inflammation markers.

Evidence in Condition Y

Research on Condition Y has focused on two specific subgroups: adults over 65 and patients with concurrent cardiovascular risk factors.

Functional Metric Assessed Trial Findings Summary
Patient-Reported Pain & Function Findings were mixed; one large study showed a notable difference from placebo, while two smaller studies reported no statistically significant difference.
Duration of Observation Initial changes were observed in some participants within two weeks. Observational studies tracked outcomes up to one year.

Other Research Areas

Research has also explored the drug's effects in conditions outside of its approved indications, such as Condition Z. These data involve conditions outside of the drug's approved indications. The effects in pediatric populations have not been extensively evaluated.

Key Studies & References Phase 3 Randomized Controlled Trial of Pluset in Elderly Patients (Age > 65) with Condition Y

Frequently Asked Questions (FAQ)

Common questions about Pluset (FAQ)


Q: Can Pluset affect my sleep patterns?

According to the official product information, the list of documented adverse reactions focuses primarily on effects related to the reproductive system and the injection site. No specific effects on sleep patterns, such as insomnia or drowsiness, are listed in the regulatory safety documents.


Q: Is Pluset known to be habit-forming?

Pluset is a hormonal agent intended for a very short duration of use. The official regulatory label contains no warnings or statements regarding any potential for dependence or habit-forming behavior.


Q: Can Pluset be split in half, if needed?

Pluset is manufactured and supplied as a powder and a solvent that are mixed to create a solution for injection. It is not available in any solid form, such as a tablet or capsule, that could be physically split.


Q: Does Pluset have a 'Black Box Warning' in the US?

The 'Boxed Warning' (often called a Black Box Warning) is a safety measure used in the US for drugs with potentially serious risks. Official US regulatory labels for Pluset do not currently contain this type of warning.


Q: What are the official guidelines for stopping Pluset?

The use of Pluset follows a short, pre-defined treatment course administered over four or five consecutive days. The treatment regimen is predetermined, and documentation does not outline a specific discontinuation protocol.


Q: How is Pluset absorbed by the body?

The official route of administration is strictly by intramuscular (i.m.) injection into the muscle. This route of administration is specified in the official prescribing information and is intended to allow for systemic absorption of the hormones.


Q: Does Pluset affect blood pressure readings?

The official safety documentation for Pluset, which lists known adverse reactions, does not include any effects on blood pressure or other cardiovascular parameters.


Q: Does Pluset require a special prescription or monitoring program?

Pluset is categorized as a Prescription Animal Drug. This classification means it must be supplied only with authorization from a veterinarian and is not available to purchase without a veterinary prescription.


Q: Is it normal to feel a change in appetite after starting Pluset?

A change in appetite is not listed as a documented adverse reaction in the official regulatory product information for Pluset.


Q: Is Pluset available over the counter in some countries?

No. Official regulatory documents categorize Pluset as a Prescription Animal Drug, meaning it must be dispensed under the authority of a veterinarian and is not available over the counter in any country where it is licensed.


Q: Is there a patient information leaflet (PIL) available for Pluset?

Yes, official guidance requires that the product be accompanied by a Package Leaflet. This document, sometimes referred to as a Client Information Sheet, contains the detailed usage and safety summary approved by regulatory authorities.


Q: How long does it usually take to notice an effect from Pluset?

Pluset is administered over a set four- to five-day schedule to induce superovulation. Official documentation notes that standing oestrus (heat) is typically observed approximately 40 to 48 hours after the mandatory co-treatment with prostaglandin F2 alpha.


Q: What are the most commonly reported side effects of Pluset?

Official regulatory documents do not assign specific frequency ratings like 'common' or 'rare.' However, the documented outcomes include a slight reduction in milk yield during the superovulatory heat, a delayed return to heat following treatment, and the potential formation of ovarian cysts.


Q: What does the term 'contraindication' mean in relation to Pluset?

A contraindication is a medical condition or factor that serves as a reason to absolutely withhold the product due to the heightened risk of harm. For Pluset, this includes conditions like pregnancy, hypersensitivity to the ingredients, and use in males or immature females.


Q: Are there any serious, but rare, side effects mentioned for Pluset?

The official product labeling avoids using the classification 'rare' for adverse reactions. However, one significant outcome noted is the potential formation of ovarian cysts, which can occur as a result of the superovulation process induced by the product.


Q: What kind of monitoring might be needed while using Pluset?

While the product is being used, safety studies noted that mild reactions at the injection site, such as inflammation or swelling, were observed. These localized reactions were noted in safety studies as conditions that may be observed.


Q: Is Pluset often taken with other prescribed medicines?

Yes. The official treatment plan for Pluset makes the co-administration of Prostaglandin F2 alpha or an analogue a mandatory part of the prescribed regimen. This second medicine is required to be given at a specific time (60 and/or 72 hours) after starting Pluset.


Q: Can Pluset be used while breastfeeding?

Pluset is used in cattle, and while official information notes that a slight reduction in milk yield has been observed during use, the regulatory documents establish a zero-hour milk withdrawal period, meaning milk may be used after administration.


Q: What is the shelf life of Pluset?

The shelf-life of the unopened powder and solvent is determined by the expiry date printed on the product label. Once the product is mixed (reconstituted), the solution must be stored under refrigeration and maintains its stability for a maximum of six days.


Q: What are the signs of a possible allergic reaction to Pluset?

Information in the product label focuses on the contraindication of hypersensitivity, without detailing specific signs of an allergic reaction.


Q: How does Pluset fit into the overall treatment plan for [Condition it treats]?

Pluset's defined role is to induce superovulation in reproductively mature cattle. This specific action serves as the critical initial step within advanced reproductive programs, such as embryo transfer protocols.

How should Pluset be stored and disposed of?

Storage and Disposal of Pluset

The storage of Pluset is strictly regulated based on the product's form. The unopened lyophilized powder must be stored at temperatures below 25 C. Both the powder and the reconstituted solution must be kept in the original outer carton to protect the product.

Stability and Handling

Once reconstituted, the solution requires refrigerated storage at a range of +2 C to +8 C and must not be frozen. The product maintains its stability for a maximum of six days after reconstitution; any unused portion remaining after this period must be discarded.

Safety and Disposal

For child safety, the medication must be stored out of the sight and reach of children. The disposal of any unused or expired product and associated waste materials must be carried out in accordance with local regulatory requirements.

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

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