Menopur Multidosa

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Menopur Multidosa

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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 Menopur Multidosa

Property Description
Active ingredient Menotrophin (hMG)
Form Lyophilized powder and solvent for injection (Multidose vial)
Pharmacological class Gonadotropins (Pituitary Hormones)
Common use Ovulation stimulation for infertility
Origin Urinary-derived

What Type of Fertility Medicine is Menopur Multidosa?

Menopur Multidosa is a highly purified gonadotropin preparation, classified as an ovulation stimulant used in treating female infertility. The active ingredient is menotrophin, also referred to as Human Menopausal Gonadotrophin (hMG). This medicine belongs to the Gonadotropins pharmacological class, which consists of agents that mimic the body's natural reproductive hormones. Its primary purpose is to facilitate follicular growth in women undergoing procedures like Assisted Reproductive Technologies (ART), a need clinically recognized in reproductive medicine. The medication provides a reliable hormonal boost needed to stimulate the necessary developmental process in the ovaries.


Menotrophin: What is the Origin and Composition of the Active Ingredient?

The menotrophin in the medication is distinctly urinary-derived, meaning the gonadotropins are extracted and then rigorously highly purified from the urine of postmenopausal women. It is defined as a combination product standardized to contain the equivalent biological activities of both the Follicle-Stimulating Hormone (FSH) and the Luteinizing Hormone (LH). The inclusion of Human Chorionic Gonadotrophin (hCG) contributes significantly to the LH activity, differentiating it from single-hormone recombinant preparations. This highly purified hMG formulation maintains the necessary FSH and LH bioactivities, ensuring its clinical efficacy.


Understanding the "Multidosa" Form and Presentation

Menopur Multidosa is supplied as a lyophilized powder and solvent for solution for injection. The name "Multidosa" specifically highlights its unique presentation in a multidose vial format, which contains sufficient powder to be reconstituted for several consecutive daily injections. This design offers a practical advantage for patients requiring multi-day treatment cycles, simplifying the preparation process. The final solution is administered via the subcutaneous injection route.

Regulatory References

  1. NIH MedlinePlus

What side effects are possible with Menopur Multidosa?

Possible side effects and safety information

The safety profile of menotrophin, the active ingredient in Menopur Multidosa, is formally classified by regulatory authorities based on observed adverse reactions and risks.


Frequency-Classified Adverse Reactions

Side effects are categorized by frequency based on clinical trial data, establishing a clear hierarchy of expected reactions.

  • Very Common (Affecting ge 1 in 10 patients): Headache and reactions at the injection site (including pain, bruising, swelling, or redness).
  • Common (Affecting 1 in 100 to 1 in 10 patients): Mild to moderate Ovarian Hyperstimulation Syndrome (OHSS), abdominal discomfort (pain, distension), nausea, and pelvic pain.

Serious Adverse Reactions and Systemic Risks

The most clinically significant safety concern is Severe Ovarian Hyperstimulation Syndrome (OHSS), a serious adverse reaction that may be accompanied by ascites, pleural effusion, and severe abdominal symptoms. Regulatory documents also cite the risk of thromboembolic events (blood clots) in the vascular system, which can be a serious complication, sometimes reported in association with OHSS.


Regulatory Safety Constraints

Menopur Multidosa is strictly contraindicated (must not be used) in women with specific pre-existing conditions. These safety limitations include primary ovarian failure (indicated by high FSH levels), the presence of hormone-dependent tumors (such as of the breast or uterus), or abnormal gynecological bleeding of undetermined cause. The highest risk for OHSS typically occurs in the immediate post-treatment period.

Overdose and Emergency Response

The official regulatory documents state that the primary clinical consequence of overexposure to menotrophin is Ovarian Hyperstimulation Syndrome (OHSS). Documented risk factors include a higher incidence in women with Polycystic Ovarian Syndrome and the potential for a more protracted course if pregnancy occurs.

Overdose manifestations, as described in official labeling, include severe abdominal pain, abdominal distension, nausea, and sudden, rapid weight gain. Severe OHSS can lead to life-threatening systemic outcomes, including serious thromboembolic events (e.g., pulmonary embolism, cerebral occlusion) and acute pulmonary distress.

Patients must seek immediate medical attention if any signs of OHSS occur or worsen. Urgent medical help is required for severe symptoms such as breathing difficulties, evidence of fluid accumulation (ascites, pleural effusion), or severe pain.

Because no specific antidote is known, the regulatory guidance mandates that treatment is symptomatic and supportive. Management for severe cases requires hospitalization, the immediate cessation of hormonal administration, and close observation with monitoring of fluid balance and hematocrit for up to two weeks.

Therapeutic Uses of Menopur Multidosa

What Menopur Multidosa Treats: Main Uses and Benefits

Menopur Multidosa is commonly used in fertility treatments to address issues arising from symptoms related to systemic imbalance, a condition categorized by episodic or fluctuating manifestations that may interfere with conception. This medicine is applied in addressing two primary challenges: hormonal issues resulting in absent or irregular ovulation (anovulation or oligo-ovulation), and the need for enhanced support for healthy egg development (follicular maturation) during assisted reproductive technology (ART).

Supportive Relief for Fertility Challenges

This treatment is applied across domains where additional symptomatic support is needed to address the symptoms that create noticeable physiological strain in the ovaries. It is used in conditions like Polycystic Ovarian Disease (PCOD) and other scenarios where symptoms related to systemic imbalance impact regular egg release. The therapy is relevant when supportive symptom management is appropriate, as it contributes to easing the overall symptom burden associated with ovarian failure. This ultimately contributes to easing the overall symptom load associated with ovarian dysfunction.


Quick Fact: Relief for Hormonal Infertility The medication is commonly used to help with conditions characterized by periods of heightened symptoms in fertility treatment, and is relevant for easing the symptoms related to suboptimal egg development.

Regulatory References

  1. Medsafe New Zealand Consumer Medicine Information for Menopur

Eligibility and Restrictions for Use

Eligibility for Menopur Multidosa Use

Official regulatory documents establish clear criteria for who is eligible to use Menopur Multidosa (Menotrophin) and who is strictly prohibited. The medicine is primarily authorized for adult females with infertility due to anovulation or those undergoing Assisted Reproductive Technologies (ART).


Absolute Contraindications

Menopur Multidosa is contraindicated and must not be used in several patient populations, as defined in official prescribing information:

  • Pregnancy (classified as Category X) and for nursing mothers.
  • Women with Primary Ovarian Failure (indicated by high FSH levels).
  • Patients with tumors of the pituitary gland, hypothalamus, or sex hormone-dependent tumors of the reproductive organs.
  • Those with uncontrolled non-gonadal endocrinopathies (e.g., severe thyroid or adrenal dysfunction).
  • The presence of abnormal uterine bleeding or ovarian enlargement of undetermined origin.

Use Not Established

Safety and efficacy have not been established in specific patient groups, leading to restrictions:

  • Pediatric populations and geriatric populations.
  • Patients with renal insufficiency or hepatic insufficiency.

What should I know about interactions with other medicines?

Interactions with Other Medicines and Products

The interaction profile for Menopur Multidosa (menotrophin) is defined by official pharmacodynamic effects and specific, conditional administration constraints, as documented in regulatory prescribing information.

Pharmacodynamic Effects The co-administration of Clomiphene Citrate is documented to enhance the ovarian follicular response. Patients who have undergone pituitary desensitization using a GnRH Agonist may be required to use a higher initial dose of Menopur to achieve adequate follicular development.

Administration Restrictions and Constraints Regulatory documents impose conditional constraints on co-administered treatments. Human Chorionic Gonadotropin ( hCG) must be withheld if monitoring indicates an excessive ovarian response, a mandatory procedural constraint. Furthermore, when co-administered with urofollitropin ( BRAVELLE^ ®), the total daily dose of the combined products must not exceed 450 International Units ( IU).

Pharmacokinetic and Substance Status No human drug-drug interaction studies have been conducted to evaluate the effects of menotropins on metabolic pathways, meaning no pharmacokinetic interactions involving CYP enzymes or drug transporters are officially documented. No known interactions with food or common drinks are documented in the labeling, and the effect of alcohol is officially stated as unknown. The safety and pharmacokinetics of menotropins have not been established in women with renal or hepatic insufficiency.

Mechanism of Action

How Menopur Multidosa Works at the Biological Level

Menopur Multidosa acts as a dual agonist, directly binding to and activating both the Follicle-Stimulating Hormone receptor (FSHR) and the Luteinizing Hormone/choriogonadotropin receptor (LHCGR) on ovarian cells. This receptor binding initiates intracellular signaling cascades, including the cAMP-PKA pathway, to drive follicular growth and maturation, exogenously supplying gonadotropins to circumvent endogenous regulation.

The simultaneous activation of both receptors engages the two-cell, two-gonadotropin system, a signaling cascade that promotes the synthesis of sex hormones. This interaction promotes the conversion of androgens into estradiol by the granulosa cells through increased aromatase enzyme activity. This biological sequence leads to a significant increase in circulating estrogen levels and results in multi-follicular development.

Dosage and Administration Information

Menopur Multidosa: Reconstitution and Administration

Menopur Multidosa is provided as a powder and must be reconstituted with the sterile solvent provided before subcutaneous (SC) injection. The multi-dose formulation allows for storage and use for subsequent daily injections as prescribed by a healthcare provider, typically for up to 28 days after mixing, when stored below 25 C.

Preparation Steps

  1. Hand Hygiene and Surface: Wash hands thoroughly and prepare a clean, flat working surface.
  2. Mixing: The Menopur powder is dissolved in the sterile diluent (usually 1 mL of 0.9% Sodium Chloride) provided in the kit. The specified volume of diluent is withdrawn and slowly injected into the vial containing the powder. Gently swirl the vial until the powder is completely dissolved. Do not shake, as this can create foam or bubbles.
  3. Dose Withdrawal: After dissolution, the required daily dose, as determined by your physician, is withdrawn from the vial into the sterile syringe. Any air bubbles should be removed before injection.

Administration

Menopur is administered via subcutaneous injection, usually into the abdominal area.

  • Injection Site: Clean the injection site with an alcohol pad and allow it to air-dry. Common sites are a few inches from the navel, and rotation of the site is recommended for daily injections.
  • Technique: Gently pinch a fold of skin at the injection site. Insert the needle straight (perpendicular) into the pinched skin, and slowly push the plunger until the medication is fully injected.
  • Post-Injection: Remove the needle gently and apply light pressure to the area for a few seconds. Used needles and syringes must be immediately discarded in a designated sharps container.

Consult your healthcare provider or pharmacist for personalized instructions on the number of vials to mix and the exact dose to inject.

Recent Clinical Evidence

Menopur Multidosa: Recent Clinical Evidence

Menopur Multidosa (highly purified Human Menopausal Gonadotropin, hMG) is used for controlled ovarian stimulation (COS) as part of assisted reproductive technology (ART) programs, such as in vitro fertilization (IVF). The clinical evidence focuses primarily on its comparison to recombinant Follicle Stimulating Hormone (rFSH) and its effect on pregnancy outcomes and safety profiles in women undergoing ART.


Evidence on Efficacy in ART

Clinical trials, including large, randomized, open-label, non-inferiority studies, have investigated the outcomes of using Menopur versus rFSH in women undergoing COS.

  • Ongoing Pregnancy Rate: Several meta-analyses and trials suggest that the ongoing pregnancy rate per started cycle may be similar between Menopur and rFSH. However, some sub-analyses and studies have reported differences in clinical pregnancy rates in specific IVF patient populations.
  • Live Birth Rate: Pooled data from comparative studies generally indicate similar live birth rates per embryo transfer when comparing hMG-based stimulation protocols with rFSH protocols.
  • Oocyte Yield and Quality: Research shows that the number of oocytes retrieved and measures of embryo quality, such as blastulation rates, may be comparable between Menopur and rFSH-based regimens. Some studies have noted that Menopur may be associated with a different follicular development profile due to its Luteinizing Hormone (LH) activity.

Safety and Side Effect Profiles

Clinical research also evaluates the safety profile of Menopur, particularly regarding the risk of Ovarian Hyperstimulation Syndrome (OHSS).

Adverse Event (Observed in Studies) Description of Findings
Ovarian Hyperstimulation Syndrome (OHSS) The risk of OHSS is consistently evaluated in trials. Data from a large trial in high-responder patients suggested a lower incidence of OHSS in the Menopur treatment group compared to rFSH.
Common Adverse Events The most frequently reported adverse events observed across clinical studies include headache, abdominal pain, nausea, and injection site reactions (e.g., pain, inflammation, bruising).

Ongoing clinical research continues to explore optimized, individualized dosing regimens, often in combination with recombinant products, to maintain efficacy while minimizing adverse events.

Frequently Asked Questions (FAQ)

Common questions about Menopur Multidosa (FAQ)


Q: What is the difference between Menopur and Menopur Multidosa?

A: The term 'Multidosa' is used in official product information to specify the multi-dose presentation of the medicine. This means the vial contains enough powder to be reconstituted for several consecutive daily injections, which is a design feature for multi-day treatment cycles.


Q: Is it normal to feel a little bloated after starting Menopur Multidosa?

A: According to the official product information, mild to moderate abdominal distension and abdominal pain are classified as common side effects. These effects are reported in a statistical range of 1 in 100 to 1 in 10 patients during clinical studies.


Q: What should I do if the injection site is red after using Menopur Multidosa?

A: Injection site reactions, including redness and pain, are classified as Very Common adverse events reported in clinical trials. While these local reactions are frequent, official safety information highlights the importance of seeking medical attention if you experience signs of a severe allergic reaction or severe adverse events like intense pelvic or abdominal pain.


Q: Are there known interactions between Menopur Multidosa and oral contraceptives?

A: Specific drug-drug interaction studies evaluating Menopur with common medications like oral contraceptives are not documented in the regulatory labeling. The regulatory interaction section focuses primarily on other hormone-related fertility treatments, such as Clomiphene Citrate.


Q: Is it possible to use Menopur Multidosa if I have certain thyroid conditions?

A: Official regulatory documentation states that the medicine is contraindicated in patients with uncontrolled non-gonadal endocrinopathies. This includes severe thyroid or adrenal dysfunction. Eligibility for use is restricted under these specific conditions.


Q: What are the reasons someone would have to stop using Menopur Multidosa?

A: Treatment may be required to stop if ovarian monitoring suggests an excessive response to the medicine. This cessation of use, typically prior to the administration of Human Chorionic Gonadotropin ( hCG), is a condition specified in the protocol intended to reduce the risk of Ovarian Hyperstimulation Syndrome ( OHSS).


Q: Does alcohol consumption affect how Menopur Multidosa works?

A: According to the official regulatory labeling, the effect of alcohol consumption on how the active component (menotropins) works is officially stated as unknown.


Q: How does Menopur Multidosa compare to recombinant FSH products?

A: Clinical studies often compare Menopur to recombinant Follicle Stimulating Hormone ( rFSH) products. Studies and official information indicate that the ongoing pregnancy rates and live birth rates are generally similar between the two types of protocols. Furthermore, some clinical sub-analyses have reported a potentially lower incidence of severe Ovarian Hyperstimulation Syndrome ( OHSS).


Q: Is the pain from the injection a common concern reported by users?

A: Yes. Injection site reactions, which include pain, bruising, swelling, or redness, are classified as Very Common adverse events in official regulatory documents. This classification means they are observed in at least 1 in 10 patients.


Q: What is the evidence regarding the success rates mentioned for Menopur Multidosa?

A: The effectiveness of the medicine in clinical studies is primarily measured by specific outcomes established in clinical trial protocols. These key metrics include the Ongoing Pregnancy Rate ( OPR) per cycle started and the Cumulative Live Birth Rate ( CLBR).


Q: How quickly should I expect Menopur Multidosa to start working?

A: The treatment is part of a regimen used to promote ovarian follicular growth and maturation. According to regulatory guidelines for controlled ovarian hyperstimulation, the monitoring period required for a response in controlled ovarian hyperstimulation typically lasts 7 to 20 days.


Q: Is Menopur Multidosa considered a hormone replacement?

A: No. Menopur Multidosa is officially classified by regulatory authorities as a Gonadotropin and an Ovulation Stimulant. It is used to promote follicular growth as part of fertility treatment protocols.


Q: Are there different versions of Menopur Multidosa?

A: Yes, the multi-dose formulation is available in different strengths. These different strengths are listed in the official composition documents.


Q: Can Menopur Multidosa be used for men and women?

A: Official regulatory indications list the use in adult females undergoing assisted reproductive technologies. It is also indicated for sterility in males with hypogonadism when used in combination with hCG to stimulate spermatogenesis.


Q: Does Menopur Multidosa interact with standard over-the-counter pain relievers?

A: According to the official labeling, the regulatory interaction section focuses primarily on other hormone-related fertility treatments. The labeling does not include specific interaction information for common over-the-counter pain relievers.


Q: Is there any risk of allergic reaction to Menopur Multidosa?

A: Hypersensitivity (allergic) reactions are cited in post-marketing reports as a rare, potential risk associated with the use of the medicine.


Q: How long is a typical treatment cycle with Menopur Multidosa?

A: For controlled ovarian hyperstimulation protocols, official regulatory guidelines indicate that the duration of the therapy typically does not exceed 20 days.


Q: Can Menopur Multidosa be used by someone with PCOS?

A: Yes, according to official regulatory therapeutic indications, the medicine is indicated for the treatment of anovulatory infertility. This indication includes women diagnosed with Polycystic Ovarian Disease ( PCOD/PCOS).


Q: Is it true that Menopur Multidosa is a 'natural' source of hormones?

A: The active ingredient, menotrophin, is a urinary-derived preparation. This means the components are extracted and then highly purified from the urine of postmenopausal women.


Q: Does Menopur Multidosa affect the chance of multiple births?

A: Yes. Official safety documents state that the incidence of multiple pregnancies (such as twins or triplets) is increased in patients undergoing ovulation induction with gonadotropins compared with natural conception.


Q: Does using Menopur Multidosa mean I will definitely have side effects?

A: No. Official regulatory documents classify side effects by the frequency with which they are reported in clinical trials. For instance, an effect classified as 'Very Common' affects at least 1 in 10 patients, meaning not everyone who uses the drug will experience it.


Q: What are the long-term effects of using Menopur Multidosa?

A: The FDA label notes that there have been infrequent reports of ovarian neoplasms (tumors), including cancer, in women who have had multiple courses of fertility drug therapy. The risk of severe Ovarian Hyperstimulation Syndrome ( OHSS) also extends into the immediate period after treatment is finished.


Q: What kind of monitoring is typically done when taking Menopur Multidosa?

A: Regulatory information states that close clinical monitoring is necessary to track the body's response. This typically involves ovarian ultrasound to check follicular development, which is sometimes used in combination with measurement of serum oestradiol levels.


Q: What is the experience of other patients who have used Menopur Multidosa?

A: Patient experience data from clinical trials is summarized by reported adverse events. The most frequently reported adverse events are headache and reactions at the injection site, such as pain, bruising, swelling, or redness.


Q: What should be avoided while being treated with Menopur Multidosa?

A: Official documentation indicates that the medicine is not used in cases of certain contraindications, such as primary ovarian failure or hormone-dependent tumors. Furthermore, Human Chorionic Gonadotropin ( hCG) is withheld if monitoring shows an excessive ovarian response during the cycle.


Q: How is the effectiveness of Menopur Multidosa measured in clinical studies?

A: The effectiveness is primarily measured in clinical studies using the Ongoing Pregnancy Rate ( OPR), defined as a pregnancy continuing past a certain gestational week. Another key metric is the Cumulative Live Birth Rate ( CLBR) per cycle started.


Q: Does Menopur Multidosa cause weight changes?

A: Rapid weight gain is listed in some patient information as a potential, less common side effect. This is particularly noted when weight change is associated with signs of severe Ovarian Hyperstimulation Syndrome ( OHSS).


Q: Is it okay to travel while using Menopur Multidosa?

A: Storage conditions define the stability of the medicine. The reconstituted solution has specific temperature requirements (e.g., below 25 C or 77 F) and must be kept away from light, which should be considered when traveling.


Q: Can I use Menopur Multidosa if I am taking blood thinners?

A: Menopur is noted in safety documents to potentially increase the chance of thromboembolic events (blood clots). Safety documents recommend that patients with a history of blood clotting disease discuss this history with their physician.


Q: Is Menopur Multidosa a medication for preventing miscarriage?

A: No. The official indication for Menopur Multidosa is the stimulation of follicular growth for infertility treatment. Miscarriage is listed in the safety information as a potential risk associated with the procedures.


Q: What happens if Menopur Multidosa is used too late in the menstrual cycle?

A: Protocols for anovulation specify that treatment typically begins within the initial seven days of the menstrual cycle. This indicates a required timing for the protocol to achieve the desired response.


Q: Can Menopur Multidosa cause side effects that appear long after treatment is over?

A: Yes. Severe adverse events, such as Ovarian Hyperstimulation Syndrome ( OHSS), may occur in the immediate post-treatment period. The FDA label also notes potential long-term risks like ovarian neoplasms following multiple courses of therapy.

How should Menopur Multidosa be stored and disposed of?

How to Store and Dispose of Menopur Multidosa?

Regulatory documents define specific storage and disposal requirements for Menopur (menotrophin) to ensure product stability and safety.

Storage Conditions

Product State Temperature Requirement Additional Constraint
Unreconstituted Powder 2 C to 8 C (Refrigerated) OR le 25 C (Room Temp) Do not freeze; store in original container to protect from light.
Reconstituted Solution le 25 C (Room Temp) Must be discarded 28 days after first use; do not freeze.

The medicine must be kept out of the sight and reach of children at all times.

Disposal Instructions

Any unused medicine must be disposed of in accordance with local regulations, and should not be thrown away via household waste or wastewater. Used needles and syringes must be placed immediately into a dedicated, puncture-resistant sharps disposal container.

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

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