Dr. Arjun Srivastav Clinical Summary: Androtas Gel 37.5 GM is a transdermal androgen medication manufactured by Intas Pharmaceuticals Ltd. Formulated as a clear, rapid-drying 1% w/w hydroalcoholic gel, each gram of gel delivers 10 mg of bioidentical testosterone. While approved primarily as Testosterone Replacement Therapy (TRT) for adult male hypogonadism, Androtas Gel is widely prescribed off-label in reproductive medicine as Androtas gel for female IVF. In women with Diminished Ovarian Reserve (DOR) or Poor Ovarian Response (POR), low-dose transdermal testosterone priming upregulates follicular FSH receptors, improving ovarian sensitivity and egg retrieval outcomes during assisted reproductive cycles.
Product Specifications
| Clinical Parameter | Formulation Details |
| Product Trade Name | Androtas Gel / Androtas Gel 37.5 / Androtas Gel 37.5 GM |
| Active Pharmaceutical Ingredient (API) | Bioidentical Testosterone USP (1% w/w / 10 mg per gram) |
| Reference Innovator Brand | AndroGel 1% (AbbVie / Besins Healthcare) / Testogel |
| Delivery System & Pack Size | 37.5 g multi-dose canister / tube with metered application capability |
| Pharmacological Class | Endogenous Androgen / Anabolic-Androgenic Steroid |
| Primary Route | Transdermal (Topical cutaneous application only) |
| Primary Approved Indication | Male Hypogonadism (Primary and Secondary Testosterone Deficiency) |
| Specialized Reproductive Use | Female IVF Ovarian Priming for Poor Ovarian Responders (POR) |
| Australian Schedule | Schedule 4 (S4) – Prescription Only Medicine |
What is Androtas Gel Used For?
Understanding what Androtas Gel is used for involves distinct clinical protocols across both male endocrinology and female reproductive care:
- Treatment of Male Hypogonadism (On-Label TRT)
- Primary Hypogonadism: Prescribed for adult men whose testes fail to produce physiological levels of testosterone due to conditions such as Klinefelter syndrome, testicular trauma, orchitis, or bilateral torsion.
- Secondary (Hypogonadotropic) Hypogonadism: Prescribed when the hypothalamic-pituitary axis fails to secrete sufficient luteinizing hormone (LH) and follicle-stimulating hormone (FSH) due to pituitary microadenomas, previous radiation, or metabolic aging.
- Symptom Resolution: Restores circulating serum testosterone into the normal physiological reference range (), resolving chronic fatigue, loss of lean muscle mass, depressive mood changes, low bone density, and diminished libido.
- Androtas Gel for Female IVF (Off-Label Ovarian Priming)
- Poor Ovarian Response (POR): In women undergoing in vitro fertilization who meet the Bologna criteria for poor ovarian reserve (low Antral Follicle Count [AFC] or low Anti-Müllerian Hormone [AMH] ), fertility specialists prescribe low-dose androtas gel for female patients.
- Enhancing Follicular FSH Sensitivity: Intraovarian androgens promote the recruitment of pre-antral follicles and increase the density of FSH receptors on granulosa cells, helping the ovaries respond more effectively to gonadotropin injections (such as Gonal-F or Puregon).
- Improving Embryo Quality & Yield: Pre-treatment clinical protocols aim to maximize the number of mature (MII) oocytes retrieved, lower cycle cancellation rates, and improve embryo fertilization rates.
- Female Hypoactive Sexual Desire Disorder (Specialist Off-Label)
- In postmenopausal women experiencing distressing low libido, specialists may prescribe micro-dosed transdermal testosterone to restore physiological female androgen levels, administered under careful hormonal monitoring.
Mechanism of Action: How Androtas Gel Works
Testosterone functions as the primary endogenous androgen. Once applied to clean skin, the alcohol vehicle evaporates within 3 to 5 minutes, leaving the active hormone embedded within the lipid-rich stratum corneum. From this epidermal depot, testosterone is absorbed into the capillary bed, entering systemic circulation.
- In Men: Restores systemic androgenic actions, promoting protein synthesis, supporting bone mineral preservation, stimulating erythropoiesis (red blood cell production), and maintaining secondary sexual characteristics.
- In Women (IVF Priming): Within the ovarian microenvironment, androgens serve as the essential precursor for estrogen production and act as paracrine growth factors. By binding directly to androgen receptors on granulosa cells, low-dose testosterone stimulates early pre-antral and small antral follicle growth, preventing premature follicle death (atresia) before controlled ovarian stimulation begins.
Androtas Gel for Female IVF: Protocols & Clinical Evidence
The application of androtas gel for female ivf cycles requires precise timing and micro-dosing guided by a reproductive endocrinologist:
| Timeline Element | Female IVF Testosterone Priming Protocol |
| Target Population | Poor Ovarian Responders (POR) / Low AMH (<1.1) |
| Starting Window | Initiated 15–21 days before the start of gonadotropin stimulation injections |
| Female Dose Range | Micro-dose: typically 10–12.5 mg daily (a fraction of a standard male dose) |
| Application Sites | Upper outer arm, underarm area, or inner thigh |
| Cessation Rule | Discontinued on or before Day 1 of gonadotropin injections to prevent fetal hormone exposure |
Clinical Findings on IVF Outcomes
Clinical trials and systematic reviews (including meta-analyses published in Human Reproduction and Fertility and Sterility) demonstrate that while testosterone priming does not alter baseline chronological egg reserve, pre-treatment in poor responders significantly:
- Decreases total required FSH injection units.
- Reduces IVF cycle cancellation rates due to non-response.
- Increases the mean number of retrievable mature oocytes and transferable embryos.
Safety Note for IVF Patients: Because testosterone is teratogenic to a developing female fetus, testosterone gel must always be stopped before egg retrieval and embryo transfer.
Administration Protocols: How to Apply Androtas Gel
Correct application ensures proper absorption and prevents secondary transfer:
| Protocol Step | Male Hypogonadism Application | Female IVF Priming Application |
| Typical Daily Dose | 2.5 g to 5 g of gel (delivering 25 mg to 50 mg of testosterone daily). | Micro-dose: Typically 1 g to 1.25 g of gel (delivering 10 mg to 12.5 mg daily) as directed by an IVF clinician. |
| Approved Application Sites | Clean, dry, intact skin of the shoulders, upper arms, or abdomen. | Upper outer arms, underarm zone, or inner thighs. |
| Areas to Strictly Avoid | NEVER apply to the scrotum, penis, or broken skin. | NEVER apply to the breasts, face, or genital area. |
| Drying Time | Allow the gel to dry completely for 3 to 5 minutes before dressing. | Allow to dry for 3 to 5 minutes before dressing. |
| Bathing & Swimming | Wait at least 2 to 4 hours after application before showering, swimming, or bathing. | Wait at least 2 to 4 hours before washing the application site. |
BLACK BOX WARNING: Preventing Secondary Interpersonal Transfer
CRITICAL CLINICAL WARNING: Unintentional transfer of testosterone to women or children can occur when they come into physical contact with the application site of a patient using Androtas Gel.
| Safety Rule | Required Action |
|---|---|
| 1. Mandatory Hand Washing | Wash hands thoroughly with soap and warm water immediately after applying the gel. |
| 2. Cover the Application Area | Once the gel has dried, wear clothing such as a short-sleeved shirt that completely covers the treated skin. |
| 3. Pre-Contact Cleansing | If skin-to-skin contact with a partner or child is anticipated, wash the application site thoroughly with soap and water beforehand. |
| 4. Signs of Exposure in Children/Women | If a partner or child develops acne, facial hair, genital growth, or voice changes, contact a physician immediately. |
Side Effects & Clinical Monitoring
Potential Side Effects in Men
- Application Site Reactions: Transient erythema, stinging, or skin dryness due to the alcohol base.
- Androgenic Effects: Acne vulgaris, increased facial or body hair, oily skin, or male-pattern scalp hair thinning.
- Polycythemia (Elevated Hematocrit): Testosterone stimulates erythropoietin; hematocrit levels require dose reduction or phlebotomy to prevent vascular thrombosis.
- Prostate-Specific Antigen (PSA) Elevation: Annual digital rectal exams and serum PSA screenings are mandatory in men over 40.
- Suppression of Spermatogenesis: High-dose testosterone monotherapy suppresses pituitary LH/FSH, reducing intratesticular sperm production.
Potential Side Effects in Women (IVF Priming)
Because female IVF priming uses low doses for short durations (15 to 21 days), significant virilization is uncommon. However, potential side effects include:
- Mild localized acne or increased skin oiliness.
- Temporary increase in facial hair growth (hirsutism).
- Mild clitoral sensitivity.
- Emergency Rule: Discontinue and contact your fertility doctor if voice deepening or hoarseness develops.
Where Can I Buy Androtas Gel 37.5 GM?
You can purchase authentic Androtas Gel 37.5 GM securely through AustraliaRxMeds:
- Direct Online Ordering: Order genuine Androtas Gel AustraliaRxMeds via with verified batch packaging and tracked international shipping.
- Packaging & Deliverable Format: Supplied in a 37.5 g package (delivering approximately 30 days of therapy depending on individualized dosing).
- TGA Personal Importation Scheme (Australia): In Australia, testosterone is a Schedule 4 (S4 / Prescription Only) medication. Australian residents can import Androtas Gel legally under the Therapeutic Goods Administration (TGA) Personal Importation Scheme provided that:
- You possess a valid prescription from an Australian-registered medical practitioner or fertility specialist.
- You import no more than a 3-month supply per single shipment.
- Total imports within a 12-month period do not exceed a 15-month supply.
- The medication is strictly for personal use and not for commercial distribution.
- Pharmaceutical Quality: Sourcing through AustraliaRxMeds ensures you receive authentic, tamper-evident medication produced under certified Good Manufacturing Practice (GMP) standards.
FAQs
What is Androtas Gel used for?
Androtas Gel is a transdermal testosterone medication containing 1% testosterone. It is prescribed for adult men to treat male hypogonadism (low testosterone) and used off-label by reproductive endocrinologists as androtas gel for female patients undergoing IVF to improve ovarian responsiveness and egg yields.
How does Androtas Gel help in female IVF cycles?
When used as androtas gel for female ivf treatment, low-dose transdermal testosterone acts as a priming agent for women with Diminished Ovarian Reserve (DOR) or Poor Ovarian Response (POR). Applied for 15 to 21 days prior to ovarian stimulation, it upregulates FSH receptors on granulosa cells, helping the ovaries respond more effectively to fertility injections.
Where should Androtas Gel be applied?
In Men: Apply to clean, dry, healthy skin of the shoulders, upper arms, or abdomen. Never apply to the genitals (scrotum or penis). In Women (IVF Priming): Typically applied in small, measured doses to the upper outer arm, underarm area, or inner thigh as directed by a fertility specialist.
Can Androtas Gel rub off on my partner or children?
Yes. Direct skin-to-skin contact with unwashed or uncovered application sites can transfer testosterone to others. Always wash your hands with soap and water immediately after application, allow the gel to dry for 3 to 5 minutes, and keep the treated area covered with clothing.
How long does it take for Androtas Gel to work?
In men on testosterone replacement therapy, improvements in energy, mood, and libido typically begin within 2 to 4 weeks, with changes in muscle mass and bone density developing over 3 to 6 months. In female IVF priming, the regimen is completed within a targeted 15- to 21-day pre-treatment window prior to egg stimulation.
Is a prescription required to buy Androtas Gel in Australia?
Yes. Testosterone is a Schedule 4 prescription medicine in Australia. Under the TGA Personal Importation Scheme, you must hold a valid prescription from an Australian registered doctor or fertility specialist to order Androtas Gel online.
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