Sustogen (Testosterone)

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Sustogen (Testosterone)

Treatment option: Hypogonadism

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 Sustogen (Testosterone)

Quick Facts

Property Description
Active ingredient Testosterone
Form Injectable solution (Oil-based)
Pharmacological class Androgen, Steroid Hormone
Common use Hormone Replacement Therapy (HRT)
Origin Synthetic Hormone (Pharmaceutical grade)

What Type of Medicine is Sustogen (Testosterone)?

Sustogen is a prescription injectable medicine classified pharmacologically as an Androgen, which belongs to the larger group of Steroid hormones. Its active ingredient is Testosterone, the primary male sex hormone. This medication is a synthetic hormone preparation, designed to mimic the actions of the body's naturally occurring endogenous hormone. As an Androgen, the product functions as a Hormone agonist that binds to specific receptors, enabling it to act as an Endocrine system modulator used for Hormone replacement therapy (HRT). Testosterone is structurally and functionally a C-19 steroid hormone essential for regulating male reproductive and non-reproductive functions.


Sustogen's Unique Composition: A Four-Ester Blend

Sustogen is an oil-based Compound Testosterone Injection that strategically combines four distinct Testosterone esters to provide a sustained release profile, differentiating it from single-ester forms. The medication is formulated as an Injectable solution in an oil-based carrier. This unique multi-ester blend incorporates esters of varying chain lengths—specifically Propionate, Phenylpropionate, Isocaproate, and Decanoate. The clinical recognition of such compound blends is based on their ability to create a rapid peak followed by prolonged action. The deliberate use of this four-ester blend allows the product to act as a Depot injection with a Controlled-release mechanism, offering a Sustained-action formulation that is recognized for reducing the frequency of administration compared to short-acting Testosterone preparations.


What is the General Purpose of This Androgen?

The general purpose of this Androgen is to provide replacement therapy to men diagnosed with deficient Testosterone levels. This is essential for individuals with conditions such as Androgen deficiency or hypogonadism, whether primary or secondary. By supplying the necessary male sex hormone via a long-acting injection, the drug restores physiological function. Injectable testosterone is used for elevating hormone levels in men with diagnosed deficiency, supporting the fundamental goal of this compound. This correction of the hormonal balance supports the natural Androgenic activity and Anabolic effects required for maintaining overall male characteristics and metabolic well-being.

What side effects are possible with Sustogen (Testosterone)?

Possible side effects and safety information

The official safety profile for injectable testosterone is structured around documented adverse reactions and specific safety constraints, based on regulatory information from government health authorities.

Frequency-Classified Adverse Reactions

Adverse effects are categorized by their observed incidence in clinical use:

  • Very Common: Increase in hematocrit and red blood cell count, resulting in polycythemia.
  • Common: Acne, gynecomastia (male breast enlargement), increased Prostate Specific Antigen (PSA) levels, hypertension, weight gain, and injection site reactions.
  • Uncommon/Rare: Nervousness, mood disturbances, hypercalcemia, and rare, serious hepatic events such as peliosis hepatis or hepatic neoplasms, which are noted in association with long-term, high-dose androgen use.

System-Organ Classes and Serious Safety Concerns

Side effects are officially grouped by the physiological system affected, including Blood and Lymphatic System Disorders, Vascular Disorders (e.g., hypertension), Reproductive System Disorders (e.g., gynecomastia, worsening of BPH), and Metabolism and Nutrition Disorders (e.g., fluid retention).

The regulatory label highlights several serious adverse reactions. These include the documented risk of Venous Thromboembolism (VTE), such as deep vein thrombosis (DVT) and pulmonary embolism (PE), as well as a possible increased risk of Major Adverse Cardiovascular Events (MACE).

Population-Specific Safety Notes

The official prescribing information includes specific safety considerations for certain patient groups. Older adults require monitoring for prostate-related adverse effects (e.g., PSA levels and prostatic hyperplasia). Patients with pre-existing cardiac, renal, or hepatic impairment are noted for an increased risk of severe fluid retention and edema. Testosterone is officially contraindicated in pregnancy due to the risk of fetal harm.

Regulatory Safety Monitoring: The label mandates periodic monitoring of hematocrit, hemoglobin, and PSA levels during the course of therapy.

Overdose and Emergency Response

Overdose and when to seek help

Overexposure to Sustogen (Testosterone) is officially documented as an exaggeration of the medicine’s primary effects, rather than a distinct acute toxic syndrome. Manifestations of overdosage include signs of excessive androgenic activity such as priapism (prolonged or painful erection) and excessive sexual stimulation. Physiological findings linked to overexposure include erythrocytosis (abnormally high red blood cell count) and fluid retention (edema).


Emergency Actions and Severe Outcomes

Regulatory authorities mandate that immediate medical attention must be sought if symptoms suggesting a severe cardiovascular event occur, such as sudden weakness, chest pain, or slurred speech. Furthermore, emergency services must be contacted if an individual collapses, experiences a seizure, or has trouble breathing.

Overdose management is constrained by the fact that no specific antidote is known. The official procedure is the termination of therapy or dose reduction, followed by the provision of symptomatic and supportive treatment.


Population-Specific Considerations

Overdose information notes that pediatric patients are at risk for the acceleration of bone age and premature epiphyseal closure. Patients with pre-existing cardiac, hepatic, or renal insufficiency face an increased risk of severe complications, including congestive cardiac failure, due to fluid retention.

Therapeutic Uses of Sustogen (Testosterone)

Understanding Sustogen (Testosterone)

Sustogen is a formulation of testosterone, the primary androgenic hormone responsible for the development and maintenance of male sexual characteristics and various physiological functions. It is typically used as a hormone replacement therapy (HRT) for individuals whose bodies do not produce sufficient levels of endogenous testosterone.

Primary Medical Uses

The principal application of Sustogen is the treatment of male hypogonadism. This condition occurs when the testes (primary hypogonadism) or the pituitary-hypothalamic axis (secondary hypogonadism) fail to produce adequate testosterone. The therapy aims to restore testosterone levels to a physiological range, addressing symptoms associated with a deficiency.

Specific conditions treated include:

  • Primary Hypogonadism: Resulting from testicular failure due to conditions such as cryptorchidism, bilateral torsion, orchitis, or vanishing testis syndrome.
  • Hypogonadotropic Hypogonadism: Resulting from a deficiency in gonadotropin-releasing hormone (GnRH) or pituitary-hypothalamic injury.
  • Delayed Puberty: Used in certain cases to stimulate the onset of puberty in males with a clearly established clinical delay that is not the result of a pathological condition.

Physiological Benefits

By normalizing testosterone levels, Sustogen helps restore various biological functions that are dependent on androgens. The benefits of maintaining adequate hormone levels include:

  • Sexual Function: Improvement in libido (sexual desire) and the frequency and quality of erections.
  • Body Composition: Support for the maintenance of lean muscle mass and the regulation of fat distribution.
  • Bone Density: Testosterone plays a critical role in bone mineralization; replacement therapy helps maintain bone mineral density and reduce the risk of osteoporosis associated with low hormone levels.
  • Mood and Energy: Patients often report improvements in energy levels, mood stability, and cognitive focus when testosterone levels are stabilized.
  • Secondary Sex Characteristics: Maintenance of male physical traits, including facial and body hair growth and deepening of the voice.

Eligibility and Restrictions for Use

Who can and cannot use Sustogen (Testosterone)?

Official regulatory guidelines strictly define the population groups eligible for Sustogen (Testosterone) Injection.


Eligibility Scope

Classification Population Rule (Official Regulatory Statement)
Allowed Use Restricted to adult males with a confirmed diagnosis of a condition associated with the deficiency or absence of endogenous testosterone (hypogonadism).
Contraindicated Women must not use this medicine. It is absolutely prohibited for males with carcinoma of the breast or known or suspected carcinoma of the prostate gland.
Age-Related Use in pediatric patients (males less than 18 years old) is not established. Safety and efficacy are also not established for treating age-related hypogonadism in older men.
Conditional Use Caution is required for patients with pre-existing cardiac disease (including congestive heart failure), renal impairment, or hepatic impairment, due to the risk of fluid retention (edema).

Official Eligibility Statements

  • Contraindicated in women who are pregnant due to the potential for fetal harm.
  • Conditional use is necessary for patients with Benign Prostatic Hyperplasia (BPH) and those with risk factors for Sleep Apnea.
  • The medication is only approved for use when hypogonadism is established and must not be used to treat low testosterone levels solely due to aging.

What should I know about interactions with other medicines?

Interaction Map: Interactions with other medicines and products — official regulatory information for Sustogen (Testosterone)


Interaction scope

  • Medicinal product categories with documented interactions: Antidiabetic Agents (Insulin), Oral Anticoagulants, Glucocorticoids (Corticosteroids), and Medications that Increase Blood Pressure.
  • Specific interacting medicines (if explicitly listed): Oxyphenbutazone, Warfarin.
  • Mechanistic basis of interactions (only if stated in label): Pharmacodynamic effects on fluid and glucose balance. Exposure-altering effects that increase sensitivity to oral anticoagulants.
  • Timing-based interaction rules (if applicable): None documented.
  • Population-specific interaction notes (if applicable): Caution with Corticosteroids is advised for patients with pre-existing cardiac, renal, or hepatic disease due to fluid retention risk. Close monitoring of Oral Anticoagulants is required at therapy initiation and termination.
  • Interaction-related restrictions: Requires more frequent monitoring of INR/prothrombin time; may require dose decrease of anti-diabetic agents.

Interaction classifications (high-level)

  • Interaction severity classification (as defined in official documents): Clinically Significant Interactions; requires monitoring or dosage adjustment.
  • Regulatory basis (EMA / FDA / etc.): FDA Prescribing Information / DailyMed.
  • Interaction-context constraints (as defined in official documents): Related to metabolic and hormonal effects (coagulation, glucose, fluid/electrolyte balance).

Resulting interaction structure

  • Official interaction statements:
    • Co-administration with Oral Anticoagulants may increase sensitivity to the anticoagulant, necessitating frequent INR monitoring.
    • May require a decrease in the dose of Anti-diabetic Agents (e.g., Insulin) due to effects on blood glucose.
    • Concurrent use of Corticosteroids or ACTH may lead to increased fluid retention.
    • Concomitant administration of Medications that also Increase Blood Pressure may lead to additional blood pressure increases.
    • May result in elevated serum levels of co-administered Oxyphenbutazone.
  • Connection to the overall interaction profile (2–4 sentences): The regulatory profile defines the drug's interactions via pharmacodynamic effects on glucose and electrolyte balance, and exposure-altering effects on Oral Anticoagulants. This necessitates procedural constraints, such as increased monitoring and potential dosage adjustments for the interacting agents, as established by government labeling.

Mechanism of Action

How Sustogen (Testosterone) Works at a Biological Level

Sustogen (Testosterone) acts primarily through three key mechanistic domains that regulate structural changes and hormonal balance across the body.


Genomic Signaling and Protein Production

The drug functions as a ligand-activated agonist that binds to the intracellular Androgen Receptor (AR), a protein that then moves to the cell nucleus to modulate gene expression. This key mechanism governs the cell's long-term rate of protein synthesis, a foundational process that leads to the modulation of tissue accretion in skeletal muscle and bone.


Enzymatic Conversion and Metabolic Synergy

Testosterone is a substrate for two essential enzymes: 5alpha-Reductase, which creates the more potent androgen, Dihydrotestosterone (DHT), and Aromatase, which converts it to Estradiol (estrogen). This required conversion provides the necessary dual-mechanism signal (androgenic and estrogenic) for broad-spectrum sex-steroid signaling, which includes the modulation of osteoblast and osteoclast activity and tissue-specific hormone response.


Anabolic Pathways and Endocrine Regulation

The molecule initiates anabolic pathways by promoting nitrogen retention and the synthesis of structural proteins, driving an overall shift in cellular metabolism toward anabolism. Concurrently, it engages in a negative feedback loop on the Hypothalamic-Pituitary-Gonadal (HPG) axis, which is the central control system that regulates the pituitary and hypothalamic release of GnRH and LH.

Dosage and Administration Information

Sustogen (Testosterone) is an injectable solution that must be administered strictly by a doctor or a nurse during a medical appointment. The official instructions for its administration must be followed closely.

Administration Guidelines

Administration Scope Official Instruction
Route of Administration Deep intramuscular (IM) injection.
Dosing Schedule Adults: Usually, one injection of 1 mL every three weeks. The dose is adjusted by the clinician. Female-to-Male Transsexuals: Doses typically vary from 1 mL every two to four weeks.
Timing in Relation to Meals Can be injected without considering meals or drinks.
Preparation The contents of each ampoule are for one injection only and must be used immediately after opening.
Age-Group Rules Contraindicated in children under 3 years old. Pre-pubertal children require close medical monitoring.
Missed Dose Patients must talk to their doctor or nurse as soon as possible if a scheduled injection is missed. No double dose should be injected to make up for forgotten individual doses.
Special Procedure Must be given deeply into a muscle (e.g., the buttock, upper leg, or upper arm).

The drug is administered via an intramuscular injection on a typically three-weekly basis. The primary constraint is that administration is not for self-use and must be performed by a qualified healthcare professional. This procedural structure ensures the correct delivery of the oil-based solution deep into the muscle, adhering to the required schedule for maintaining therapeutic hormone levels.

Recent Clinical Evidence

Research evidence / Overview of Studies for Sustogen (Testosterone)


Evidence for Use in Androgen Deficiency (Hypogonadism)

The primary body of research was evaluated in men diagnosed with Androgen Deficiency (Hypogonadism), which is a condition involving a lack or low level of natural testosterone. These research efforts relied on Randomized Controlled Trials (RCTs), typically lasting from six months to three years, and Systematic Reviews that analyze these trials.

The studies consistently reported that the treatment was associated with a normalization and maintenance of circulating testosterone concentrations, an endocrine endpoint widely reported in consistent evidence.

Research explored the outcomes reflecting daily functioning or activity level and physical changes. Specifically, studies described patterns where scores related to sexual function were associated with changes over the course of the study period compared to placebo. The consistency of this evidence is graded as moderate.

Research also examined how the therapy affected body composition, with findings in RCTs showing recorded measurements where lean body mass measures were higher and fat mass measures were lower in the treatment groups compared to controls. However, for broader neuropsychological function (e.g., mood, energy) and metabolic markers (e.g., blood glucose, Bone Mineral Density), the findings were mixed and vary across different research settings.


Long-Term Studies and Extended Follow-up

The limited follow-up durations of most definitive RCTs mean that long-term data comes from Prospective Observational Registries, sometimes extending up to 12 years. These observational settings describe patterns where hormone levels and symptom scores were observed across the extended periods.


Evidence in Specific Patient Populations

Studies have explored effects in specific groups, including middle-aged and older men, as well as individuals with comorbidities such as Type 2 Diabetes Mellitus. These studies explore outcomes related to systemic or functional imbalance within these groups. However, data for certain groups remain insufficient, and subgroup findings are less certain compared to the general hypogonadal population.


What Remains Uncertain in the Research Landscape

The key limitations stem from the fact that long-term effects are not fully established, particularly concerning the incidence of rare events (e.g., cardiovascular or prostate-related events). The individual RCTs were not adequately powered to capture these changes. Furthermore, the inconsistency in findings for certain physical and psychological endpoints suggests that research is ongoing to understand why outcomes vary among different observed populations.

Key Studies & References

  1. A Study to Evaluate the Effect of Testosterone Replacement Therapy (TRT) on the Incidence of Major Adverse Cardiovascular Events (MACE) and Efficacy Measures in Hypogonadal Men (TRAVERSE) Study

Frequently Asked Questions (FAQ)

Common questions about Sustogen (Testosterone) (FAQ)

Q: Is Sustogen the same kind of testosterone as other brands?

Official product information describes Sustogen as a compound testosterone injection. It contains a blend of four different testosterone esters, which provides a controlled and sustained release of the hormone. This multi-ester composition is what distinguishes it from some other testosterone preparations that use only a single ester.

Q: Does Sustogen treat conditions other than low testosterone levels?

Sustogen is officially approved and indicated for replacement therapy in adult males diagnosed with a deficiency or absence of the body's natural testosterone (hypogonadism). Regulatory documents specify that it is not approved for use in conditions where testosterone deficiency has not been clinically confirmed.

Q: How quickly do people typically start to notice changes after beginning Sustogen?

The speed at which individuals notice any changes can vary. Research typically measures functional and physical effects over a period of several months, reflecting the long-term nature of replacement therapy.

Q: What is the typical time frame for the effects of Sustogen to stabilize?

Clinical research on the drug has involved studies lasting from six months to three years, over which time hormone levels are typically stabilized. Stabilization of functional and physical outcomes, such as changes in body composition, is assessed over this long-term period.

Q: Is it normal to feel moody or irritable when first starting Sustogen?

The official safety profile includes mood disturbances and nervousness among the reported adverse reactions, though they are listed as uncommon or rare. The onset of these changes can vary by patient and is a factor for clinical awareness during therapy.

Q: Are there any long-term health risks associated with using Sustogen for many years?

Official safety information highlights several serious adverse reactions associated with testosterone, including the documented risk of Venous Thromboembolism (VTE) and a possible increased risk of Major Adverse Cardiovascular Events (MACE). These risks are subject to regulatory monitoring throughout the course of long-term treatment.

Q: If I miss a dose of Sustogen, what is the general recommendation?

If a scheduled injection appointment is missed, the patient should contact the doctor or nurse as soon as possible to discuss the next steps. The official guidelines emphasize that a double dose should not be injected to make up for a missed or forgotten dose.

Q: Are there different forms of Sustogen (e.g., pill, injection, patch)?

Sustogen is formulated and marketed only as an oil-based injectable solution designed for deep intramuscular administration. This specific form allows it to act as a long-acting depot injection.

Q: What happens if a woman accidentally uses Sustogen?

The medication is contraindicated in women and should not be used by them. In females, testosterone exposure may lead to signs of virilization (development of male physical characteristics). It is strictly prohibited during pregnancy due to the potential for fetal harm.

Q: Can Sustogen affect blood pressure readings?

Regulatory documents indicate that caution is required for patients with pre-existing high blood pressure (hypertension) or heart conditions, due to the risk of additional blood pressure increases or severe fluid retention.

Q: Are there any common supplements that should be avoided while using Sustogen?

The official interaction profile focuses on prescription drug classes such as Oral Anticoagulants, Anti-diabetic agents, and Corticosteroids. Regulatory documents do not list specific interactions with common nutritional supplements.

Q: Does alcohol interact with Sustogen?

Official regulatory documents do not list a direct interaction between Sustogen and alcohol. However, the long-term or excessive consumption of alcohol is a known factor that can affect the body's natural production of hormones.

Q: Do you have to take Sustogen for life, or can it be stopped?

Sustogen is designed as a replacement therapy for a chronic deficiency. If the medication is discontinued, testosterone levels will typically fall back to the deficient pre-treatment levels over time, which may result in the return of symptoms.

Q: Can diet changes influence how well Sustogen works?

Official documents do not define any direct interaction with diet. However, the drug is known to interact with certain medications like anti-diabetic agents and can affect blood glucose levels, which are factors often influenced by dietary choices.

Q: Is Sustogen appropriate for older men?

Sustogen is not established or approved for the treatment of low testosterone levels solely due to aging (age-related hypogonadism). Older adults require close monitoring for prostate-related effects, such as BPH or increased PSA levels.

Q: Can people with heart conditions use Sustogen?

Official guidelines require caution for patients with pre-existing cardiac disease (including congestive heart failure) due to a documented risk of severe fluid retention (edema). These conditions are noted as requiring clinical awareness during therapy.

Q: What happens to your body's natural testosterone production while using Sustogen?

The administered hormone engages a negative feedback loop on the body's central control system, the HPG axis. This process suppresses the release of regulating hormones, thereby reducing the body's natural testosterone production.

Q: Does Sustogen interact with common pain relievers like ibuprofen or acetaminophen?

Regulatory information does not list a specific interaction with common over-the-counter pain relievers like ibuprofen or acetaminophen. Clinically significant interactions are specifically listed for drug classes such as Oral Anticoagulants due to altered sensitivity.

Q: What are the signs that Sustogen is starting to work?

Clinical studies focused on measuring changes in outcomes such as sexual function and improvements in lean body mass measures. Changes or improvements in these areas are associated with the drug starting to work, though individual responses may vary.

Q: How does Sustogen differ from HCG (Human Chorionic Gonadotropin) for testosterone issues?

Sustogen is an exogenous androgen (testosterone) that directly replaces the deficient hormone in the body. Human Chorionic Gonadotropin (HCG) is a gonadotropin that works by stimulating the body's own testosterone production within the testes, making them different pharmacological classes.

Q: What is the current state of clinical research on Sustogen's safety?

The official safety profile highlights potential risks, including Venous Thromboembolism (VTE), such as DVT and PE, and a possible increased risk of Major Adverse Cardiovascular Events (MACE). Regulatory labels mandate ongoing safety monitoring and reporting for these concerns.

Q: Can Sustogen cause changes in cholesterol or lipid levels?

Official safety documents state that treatment with androgens may result in adverse changes to the lipid profile, which includes changes in levels of HDL and LDL cholesterol. The regulatory label requires patients to have periodic monitoring of their lipid profiles during therapy.

Q: Why do official documents specify that Sustogen is not for treating 'age-related' low T?

The regulatory indication for Sustogen is restricted to males with confirmed hypogonadism (testosterone deficiency due to known causes). Official documentation specifies that the drug's safety and efficacy are not established for the sole treatment of low testosterone levels associated with the natural process of aging.

Q: If I have a history of prostate issues, can I still use Sustogen?

The medication is contraindicated (prohibited) for use in males with known or suspected carcinoma of the prostate gland. For patients with a history of Benign Prostatic Hyperplasia (BPH), use requires caution and close medical monitoring.

Q: Are there any known interactions between Sustogen and common diabetes medications?

Yes, official documents note that the co-administration of Sustogen with Anti-diabetic Agents (including Insulin) may necessitate a decrease in the dose of the anti-diabetic agent. This is due to the drug's potential effects on blood glucose balance.

Q: How long does Sustogen stay in the body after the last administration?

Sustogen's unique multi-ester formula is designed to act as a depot injection with a sustained-action release mechanism. The slowest-releasing ester can maintain plasma concentrations for a period of several weeks after the injection.

Q: Is weight gain a reported side effect of Sustogen?

Yes, weight gain is listed as a Common adverse reaction in the official frequency-classified safety profile of the medication. This is often associated with the fluid retention sometimes experienced with androgen therapy.

Q: What are the main research themes that have been studied regarding Sustogen?

Research has focused on achieving the normalization of circulating testosterone concentrations, assessing changes in sexual function, and evaluating the effects on body composition, such as increasing lean body mass and reducing fat mass measures.

Q: Does being overweight or underweight affect the way Sustogen is used?

Regulatory documentation advises caution for patients with comorbidities like obesity due to a potential for an increased risk of side effects, such as worsening Sleep Apnea. Body mass may therefore be a factor requiring increased clinical vigilance.

Q: What happens if Sustogen is discontinued abruptly?

Since the medication suppresses the body's natural production, abruptly stopping the drug will typically cause exogenous testosterone levels to fall, leading to the return of hypogonadal symptoms over time as the body tries to re-establish its baseline.

Q: How does the effectiveness of Sustogen in younger patients compare to older patients in clinical studies?

Clinical studies have included middle-aged and older men, but official documents state that findings for certain patient subgroups are less certain compared to the general hypogonadal population. The drug is explicitly not approved for age-related low T.

Q: Can Sustogen be used by people who have had a mastectomy or other hormone-sensitive cancers?

The medication is contraindicated (prohibited) in males with known or suspected carcinoma of the breast or carcinoma of the prostate gland. These are considered absolute prohibitions listed in the official prescribing information.

Q: What expectations should I have about muscle mass changes while on Sustogen?

Studies and official information indicate that the drug's effect on protein synthesis promotes changes in body composition. Research has described patterns where lean body mass measures were higher and fat mass measures were lower in treatment groups compared to controls.

Q: Is it possible to be allergic to ingredients in Sustogen?

The regulatory label lists that hypersensitivity reactions (allergic reactions) are possible adverse events. As with any medication, if a severe allergic reaction is suspected, clinical attention is required.

Q: Can taking Sustogen impact mental focus or energy levels?

Studies have examined the effect of the therapy on neuropsychological function, including mood and energy levels. However, official research summaries state that findings for these endpoints have been mixed and vary across different research settings.

Q: Does Sustogen affect blood sugar levels?

Official interaction statements indicate that the medication can affect the balance of blood glucose. Due to these potential effects, a patient taking anti-diabetic agents may require a decrease in the dose of those medicines.

How should Sustogen (Testosterone) be stored and disposed of?

How to Store and Dispose of Sustogen (Testosterone)?

Official labeling defines strict conditions for storing and disposing of this testosterone injection to ensure stability and safety.

Category Regulatory Requirement
Storage Temperature Store the product below 30 C or at 20 C to 25 C (Controlled Room Temperature).
Prohibited Environments Do not refrigerate or freeze the solution; cold temperatures can cause crystallization or clouding, making the oil-based solution difficult to inject.
Protection & Packaging Keep the medicine in its original package to protect it from light.
Child Safety Keep out of the reach and sight of children.
Disposal Any unused product, expired medicine, or waste material must be disposed of in accordance with local requirements; do not throw away in household waste or flush down the toilet. Used injection supplies (sharps) must be placed in a puncture-proof container and returned to a pharmacist for proper disposal.

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

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