Specified male hypogonadism
Current approvals concern specific structural or genetic causes, with product-specific labeling.4
Testosterone replacement therapy
FDA-approved products treat specified forms of male hypogonadism. The April 2026 announcement invited applications for a possible new indication; it did not approve it.
Current approvals concern specific structural or genetic causes, with product-specific labeling.4
Not applicable: this compound is not a single peptide.
Reference identity · not independently confirmed16
This value is reported by a secondary reference. The stated attribution has not been independently verified as a route- and formulation-matched human PK measurement.
Illustrative scenario using an unverified reference estimate. Shading shows the reported half-life range. No midpoint is assumed.
Five half-lives in this estimated model. This is not a prediction of when effects stop.
Population: Not established by the reference estimate
Source’s stated attribution: FDA Depo-Testosterone label
Source’s reported peak time: 2 days. This has not been independently confirmed and is not used in the elimination curve.
100 × 2−time / half-life. Time zero is a reference level, not the moment of administration. Absorption, repeated dosing, metabolites and clinical effects are not modeled. Five half-lives leaves 3.125%, not zero. This curve cannot determine a dosing interval.
Noninferiority for the primary cardiovascular endpoint is not proof of risk-free treatment.5
Symptoms 3–6 weeks; recovery 2–3 months; composition 3–6; bone 6–12. Route and diagnosis matter.16
These are reported timelines, not a prediction of your response.
Scroll to compare all columns →
| Route | Dose | Frequency | Goal / evidence | Duration | References |
|---|---|---|---|---|---|
| TopicalTransdermal | 1.62% gel, adjusted to testosterone 350–750 ng/dL | Daily | Cardiovascular safety in hypogonadism5,246 men aged 45–80 with symptoms, two low fasting testosterone results and cardiovascular disease or riskHuman study | Mean treatment 21.7 months | 5 |
Population 5,246 men aged 45–80 with symptoms, two low fasting testosterone results and cardiovascular disease or risk Context Monitored clinical trial; not an injectable protocol. | |||||
| SubQSubcutaneous | 100-200 mg | Weekly or split 2x/week | Standard TRTReference report | Ongoing lifetime therapy for diagnosed hypogonadism | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source route wording IM or SubQ Source tabs Injectable | |||||
| IMIntramuscular | 100-200 mg | Weekly or split 2x/week | Standard TRTReference report | Ongoing lifetime therapy for diagnosed hypogonadism | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source route wording IM or SubQ Source tabs Injectable | |||||
| SubQSubcutaneous | 75-100 mgStarting dose | Weekly | Conservative StartReference report | Ongoing lifetime therapy for diagnosed hypogonadism | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source route wording IM or SubQ Source tabs Injectable | |||||
| IMIntramuscular | 75-100 mgStarting dose | Weekly | Conservative StartReference report | Ongoing lifetime therapy for diagnosed hypogonadism | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source route wording IM or SubQ Source tabs Injectable | |||||
| SubQSubQ preferred | 50-100 mg | Every 3.5 days | Stable Levels (Split)Reference report | Ongoing lifetime therapy for diagnosed hypogonadism | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source tabs Injectable | |||||
| SubQSubcutaneous | 100-150 mg + 250-500 IU hCG | T weekly, hCG 2-3x/week | With hCG (Fertility)Reference report | Ongoing lifetime therapy for diagnosed hypogonadism | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source route wording IM/SubQ + SubQ Source tabs Injectable | |||||
| IMIntramuscular | 100-150 mg + 250-500 IU hCG | T weekly, hCG 2-3x/week | With hCG (Fertility)Reference report | Ongoing lifetime therapy for diagnosed hypogonadism | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source route wording IM/SubQ + SubQ Source tabs Injectable | |||||
| OralOral (with fat-containing meal) | 237 mg | Twice daily with food | Jatenzo StandardReference report | Ongoing therapy | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source tabs Oral | |||||
| OralOral (titrate based on levels) | 158-396 mg | Twice daily | Jatenzo Dose RangeReference report | Ongoing therapy | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source tabs Oral | |||||
| Oral | 225 mg | Twice daily with food | TLANDOReference report | Ongoing therapy | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source tabs Oral | |||||
| OtherShoulders, upper arms | 50-100 mg | Once daily | AndroGel 1%Reference report | Ongoing therapy | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source tabs Topical | |||||
| OtherShoulders, upper arms | 40.5-81 mg | Once daily | AndroGel 1.62%Reference report | Ongoing therapy | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source tabs Topical | |||||
| OtherShoulders, upper arms | 50-100 mg | Once daily | Testim 1%Reference report | Ongoing therapy | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source tabs Topical | |||||
| OtherScrotum or shoulders | 100-200 mg | Once or twice daily | Compounded CreamReference report | Ongoing therapy | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source tabs Topical | |||||
| IntranasalNasal | 11 mg per nostril | 3x daily (every 6-8 hours) | Standard NatestoReference report | Ongoing therapy | 16 |
Population Population not independently verified; see the reference and linked research. Context Reported in Pep-Pedia’s educational protocol table. Study attribution and applicability to this exact product are not independently established. FDA warning language has changed; blanket route-superiority/fertility claims are unsupported. Source tabs Nasal | |||||
No protocols match these filters.
Study and label doses retain their study context. Reference reports are unvalidated practices, not personal treatment instructions. Ranges remain ranges; escalation stages are labeled.
Reported use periods and breaks. These do not establish a safe cycle or prove that breaks prevent tolerance.
Consistent day(s) weekly; morning injection mimics natural rhythm
With breakfast and dinner
Morning after showering, allow to dry completely
Morning, afternoon, evening - spaced ~6 hours apart
FDA requires warnings about increased blood pressure.
3TRAVERSE observed more atrial fibrillation, kidney injury and pulmonary embolism.
5These findings do not validate unmonitored or supraphysiologic use.
5BP, hematocrit and clinically appropriate prostate/hormone assessment; infertility, edema, acne/hair and sleep-apnea concerns.
Skin transfer to contacts; flammable gels; nasal injury; oral absorption/product instructions differ.
VTE symptoms, dyspnea/edema, major mood/BP changes, high hematocrit, severe local reactions or household virilization.
Not a complete safety screen. Discuss health decisions with a qualified clinician.
Check cautions and reported pairings. A compatibility claim does not establish that a combination is safe.
Glucose effects.16
Reference report · Pep-Pedia label: Monitor CombinationAnticoagulant response may change.16
Reference report · Evidence context: Monitor combinationFertility strategy needs specialist care.16
Reference report · Pep-Pedia label: SynergisticNot routinely required.16
Reference report · Evidence context: SupportiveUnproven body-composition stack.16
Reference report · Evidence context: SynergisticNot interchangeable treatment.16
Reference report · Evidence context: AlternativeA class-level profile cannot replace the interaction section for the prescribed product.3
Research contextNo matching interactions. Try another name or filter.
Approved products include gels and prepared injections. A generic peptide reconstitution recipe does not apply.3
Reported handling information, not a validated formulation or instruction to prepare an injectable product.
The source discusses finished testosterone products; preparation depends on the exact presentation.
The site repeats oil-injection instructions across route tabs, including nasal. That repetition does not define route-specific handling.
The source discusses finished testosterone products; preparation depends on the exact presentation.
The site repeats oil-injection instructions across route tabs, including nasal. That repetition does not define route-specific handling.
The source discusses finished testosterone products; preparation depends on the exact presentation.
The site repeats oil-injection instructions across route tabs, including nasal. That repetition does not define route-specific handling.
The source discusses finished testosterone products; preparation depends on the exact presentation.
The site repeats oil-injection instructions across route tabs, including nasal. That repetition does not define route-specific handling.
Appearance and a purity certificate cannot establish sterility, identity, or suitability for injection.
No verified packaging examples included.
Packaging examples, not a market survey. Approved and research products are not interchangeable.
The available sources describe prepared products or do not establish a reconstitution method.16
Room temperature 20-25°C (68-77°F). Do not refrigerate or freeze.
Room temperature
Room temperature, away from heat and flame (flammable alcohol content)
Room temperature, upright position
Storage depends on the formulation, diluent, container, and handling. Follow the specific product label or pharmacist’s instructions.
Trial results in selected hypogonadal men do not establish safety of supraphysiologic use or every formulation.3
5 distinct primary sources or abstracts checked. Evidence may concern a parent compound, individual blend ingredient, animal, or cell model; it does not necessarily establish a benefit for this exact product.
Evidence definitions →FDA warning language has changed; blanket route-superiority/fertility claims are unsupported.
TRT is testosterone replacement therapy, not a peptide. Evidence, absorption, adverse effects and preparation depend on the prescribed formulation and the reason for treatment.
FDA-approved products treat specified forms of male hypogonadism. The April 2026 announcement invited applications for a possible new indication; it did not approve it.
Steroid hormone (not a peptide) · 412.61 Da (Cypionate) / 400.59 Da (Enanthate)
C27H40O3 (Cypionate) / C26H40O3 (Enanthate)Reference description; checked chemical identity takes precedence when available.16
Androgen-receptor signaling; injection esters, oral undecanoate, skin and nasal products have different exposure profiles.16
FDA removed cardiovascular-outcome boxed-warning language after reviewing TRAVERSE, while requiring warnings that testosterone products can increase blood pressure.
3FDA encouraged applications for low libido with idiopathic hypogonadism; substantial evidence is still required before approval.
4Major cardiovascular events occurred in 7.0% versus 7.3% with placebo, meeting noninferiority. Higher rates of atrial fibrillation, acute kidney injury and pulmonary embolism remained relevant.
5February 2025: removed boxed-warning language about increased adverse cardiovascular outcomes and required increased-BP warnings. This does not establish risk-free therapy or every route’s equivalence to TRAVERSE gel.
Regulatory update17FDA reports June 2026 requested updates removing the age-related-hypogonadism limitation of use and revising prostate/BPH safety language. Indications and contraindications still require the current specific product label.
Regulatory update18Specified male hypogonadism. Current approvals concern specific structural or genetic causes, with product-specific labeling.4
Restoration. Testosterone normalization, sexual symptoms, mood and energy; fertility may be suppressed.16
Composition / bone. Lean mass, strength, fat and bone density.16
Metabolic. Insulin-sensitivity and cardiovascular research; benefit is not universal.16
Pep-Pedia discusses diagnosed hypogonadism.7
Editorial summary, not a measured community survey, clinical protocol or recommendation.
Added 2025 labeling changes and the April 2026 indication-development announcement; the latter is not a new approval.
AI-prepared summaries. Independent medical editorial review is pending.
Voluntary, unverified reports. These percentages do not measure effectiveness or safety.
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The source displays “712 responses” for this profile. This is not a confirmed participant count or a denominator for individual questions.
Original sources and review status. Open a reference to read its summary.
TRAVERSE found transdermal testosterone noninferior to placebo for major cardiovascular events in selected hypogonadal men with cardiovascular risk. Atrial fibrillation, acute kidney injury and pulmonary embolism occurred more often.
Pep-Pedia bibliography · Checked 2026-10-12
TRAVERSE found transdermal testosterone noninferior to placebo for major cardiovascular events in selected hypogonadal men with cardiovascular risk. Atrial fibrillation, acute kidney injury and pulmonary embolism occurred more often.
Pep-Pedia bibliography · Checked 2026-10-12
FDA removed the cardiovascular-outcome boxed-warning language following TRAVERSE, retained age-related limitations of use, and required blood-pressure warnings.
FDA removed cardiovascular-outcome boxed-warning language after reviewing TRAVERSE, while requiring warnings that testosterone products can increase blood pressure.
Additional research · Checked 2026-10-12
FDA invited applications for a potential new low-libido indication in idiopathic hypogonadism. The announcement is not an approval of that indication.
FDA encouraged applications for low libido with idiopathic hypogonadism; substantial evidence is still required before approval.
Additional research · Checked 2026-10-12
TRAVERSE found transdermal testosterone noninferior to placebo for major cardiovascular events in selected hypogonadal men with cardiovascular risk. Atrial fibrillation, acute kidney injury and pulmonary embolism occurred more often.
Major cardiovascular events occurred in 7.0% versus 7.3% with placebo, meeting noninferiority. Higher rates of atrial fibrillation, acute kidney injury and pulmonary embolism remained relevant.
Additional research · Checked 2026-10-12
Chemical identity of unesterified testosterone; injectable esters are different chemical entities.
Additional research · Checked 2026-10-12
Secondary editorial profile and reported practices; not clinical validation.
Pep-Pedia reports: Older hypogonadal men had improvements in some sexual, mood and physical measures; effects varied by endpoint and trial subgroup.
Reported population / model
788 men ≥65 years
Reported study details
1 year · Multiple endpoints
Reported by Pep-Pedia; the linked publication, design, doses and result have not been independently verified here.
Read the Pep-Pedia report ↗Pep-Pedia reference card; original summary of its reported findings · Checked 2026-10-12
Pep-Pedia reports: Pooled studies reported greater fat-free-mass and strength changes with intramuscular than transdermal treatment; formulation comparisons may be confounded.
Reported population / model
31 RCTs analyzed
Reported study details
Various formulations · Fat-free mass outcomes
Reported by Pep-Pedia; the linked publication, design, doses and result have not been independently verified here.
Read the Pep-Pedia report ↗Pep-Pedia reference card; original summary of its reported findings · Checked 2026-10-12
Pep-Pedia reports: Registry participants had sustained metabolic/body-composition changes; observational follow-up cannot by itself establish long-term causal safety.
Reported population / model
1,000+ men
Reported study details
Up to 12 years · Real-world outcomes
Reported by Pep-Pedia; the linked publication, design, doses and result have not been independently verified here.
Read the Pep-Pedia report ↗Pep-Pedia reference card; original summary of its reported findings · Checked 2026-10-12
Pep-Pedia reports: Older hypogonadal men had improvements in some sexual, mood and physical measures; effects varied by endpoint and trial subgroup.
Reported population / model
788 men ≥65 years
Reported study details
1 year · Multiple endpoints
Reported by Pep-Pedia; the linked publication, design, doses and result have not been independently verified here.
Read the Pep-Pedia report ↗Pep-Pedia reference card; original summary of its reported findings · Checked 2026-10-12
Reference retained from Pep-Pedia’s bibliography; findings and bibliographic accuracy have not been independently verified.
Pep-Pedia bibliography · Checked 2026-10-12
Reference retained from Pep-Pedia’s bibliography; findings and bibliographic accuracy have not been independently verified.
Pep-Pedia bibliography · Checked 2026-10-12
Reference retained from Pep-Pedia’s bibliography; findings and bibliographic accuracy have not been independently verified.
Pep-Pedia bibliography · Checked 2026-10-12
Lists a half-life of 5 days – 8 days and a peak time of 2 days. Stated attribution: FDA Depo-Testosterone label. This value is reported by a secondary reference. The stated attribution has not been independently verified as a route- and formulation-matched human PK measurement. Five half-lives is not complete clearance, and the source’s “cleared” value is not used as a measured endpoint.
Secondary reference page checked; the underlying quantitative claim is not independently confirmed. · Checked 2026-10-12
Source page checked across available routes. Protocols, cycles, storage, mechanisms and pairing claims are secondary reports; checking the page does not independently validate those claims. Original concise summaries are used here.
Content coverage audit · Checked 2026-10-12
February 2025: removed boxed-warning language about increased adverse cardiovascular outcomes and required increased-BP warnings. This does not establish risk-free therapy or every route’s equivalence to TRAVERSE gel.
February 2025: removed boxed-warning language about increased adverse cardiovascular outcomes and required increased-BP warnings. This does not establish risk-free therapy or every route’s equivalence to TRAVERSE gel.
Additional primary-source check · Checked 2026-10-12
FDA reports June 2026 requested updates removing the age-related-hypogonadism limitation of use and revising prostate/BPH safety language. Indications and contraindications still require the current specific product label.
FDA reports June 2026 requested updates removing the age-related-hypogonadism limitation of use and revising prostate/BPH safety language. Indications and contraindications still require the current specific product label.
Additional primary-source check · Checked 2026-10-12