A deep-dive into nicotinamide riboside (NR): how it raises NAD+, what human trials show, how it compares to NMN, rapamycin, metformin, and glucosamine, and what doses are supported by current evidence.
A guide to off-label metformin dosing for longevity, covering evidence from TAME, ITP mouse data, rapamycin weekly protocols, and NMN/NR NAD+ precursor dosing, with inline citations to primary sources.
A clinical deep-dive into rapamycin side effects, safety signals from senolytic and longevity trials, long-term metformin safety comparisons, and the lab monitoring schedule every off-label user needs.
Keine Senolytika haben Phase-3-Studien bestanden. Alle zeigten Nebenwirkungen, von Thrombozytopenie bis Magen-Darm-Beschwerden. Die Evidenzlage im Detail.
A breakdown of whether healthy adults should use rapamycin for longevity, covering human trial data, dosing protocols, side-effect profiles, biological age testing, senolytics, and metformin as comparators.
Spermidine triggers autophagy, reduces cardiovascular risk, and may extend healthspan. Learn the evidence-backed doses, food sources, and how it compares to rapamycin, metformin, NR, and NMN.
If a parent or sibling had dementia, your risk is real but not fixed. This clinically reviewed guide covers genetic risk, the critical hormone timing window, lifestyle evidence, and actionable steps for adults over 50 with a family history of dementia.
Biological age reflects how well your cells, organs, and epigenome are functioning, not how long you have been alive. Learn which tests measure it accurately, what the evidence says about slowing it, and which longevity drugs are ready for clinical use.
A guide to the blood tests, epigenetic clocks, and organ-function panels that measure biological age, plus what is and is not established about rapamycin, metformin, and senolytics as interventions on those numbers.
A clinical deep-dive into losartan's documented effects on hair and skin, including alopecia, psoriasiform reactions, and rare dermatologic adverse events, with primary-literature citations and prescriber guidance.
A guide to obtaining a low-dose naltrexone (LDN) prescription in Virginia, covering telehealth options, compounding pharmacy requirements, labs, dosing, and insurance coverage.
Your first month of low-dose naltrexone: weekly symptom tracking, sleep and side effects, prescription checks and the month-one treatment review.
A guide to how low-dose naltrexone (LDN) affects liver enzymes and hepatic safety, covering clinical trial data, FDA labeling, monitoring protocols, and who should avoid LDN entirely.
How low-dose naltrexone (LDN) may support muscle preservation through glial modulation, cytokine reduction, and IGF-1 pathway effects. MD/PharmD-level review with primary literature, dosing guidance, and a decision framework.
A clinician-level guide to safely restarting compounded low-dose naltrexone (LDN) after an acute illness, including when to pause, how to re-titrate, and what the evidence says about opioid receptor modulation and immune function.
How long before surgery should you stop low-dose naltrexone? This MD/PharmD-level guide covers the evidence-based hold window, opioid-antagonism pharmacokinetics, anesthesia risks, and restart timing after your procedure.
A clinician-level guide to adjusting low-dose naltrexone (LDN) dosing, timing, and monitoring across seasons, covering winter immune shifts, summer heat effects, and condition-specific seasonal flare patterns.
A guide to switching low-dose naltrexone (LDN) from or to other opioid-antagonist and opioid-agonist medications, covering mechanism, timing risk, washout windows, and compounding considerations, with an emphasis on where evidence is solid and where it is not.
A guide to bremelanotide (PT-141) covering its melanocortin mechanism, FDA-approved dosing, side effects, and a head-to-head comparison with PDE5 inhibitors sildenafil, tadalafil, vardenafil, and avanafil for erectile dysfunction.
How fast do PDE5 inhibitors work? Compare onset times, peak effect windows, and duration for sildenafil, tadalafil, vardenafil, and avanafil. Includes daily vs. on-demand tadalafil dosing, Trimix injection protocols, and PT-141 dosing for ED.
A guide to every common and serious side effect of PDE5 inhibitors (sildenafil, tadalafil, vardenafil, avanafil), including NAION, priapism, and Trimix injection complications, with dosing thresholds and emergency management steps.
A guide to penile implants covering inflatable and malleable devices, surgical outcomes, satisfaction rates, and how implants compare to sildenafil, tadalafil, vardenafil, and avanafil.
A guide to pentoxifylline for Peyronie's disease covering mechanism, dosing, the strength of clinical evidence, combination therapy with PDE5 inhibitors, and when to consider escalation to injection or surgery.
A guide to Peyronie's disease covering penile curvature causes, scar tissue formation, diagnosis criteria, collagenase injections, surgery, and how the condition intersects with erectile dysfunction and low libido.
A guide to premature ejaculation covering DSM-5 criteria, IELT thresholds, dapoxetine, SSRIs, topical agents, behavioral techniques, and when PE overlaps with ED, low libido, or Peyronie's disease.
A guide to priapism emergency management covering time-to-treatment windows, aspiration and phenylephrine protocols, PDE5 inhibitor side effects, Trimix injection complications, and NAION risk.
A complete clinical guide to priapism covering ischemic vs. nonischemic types, emergency aspiration, intracavernosal phenylephrine, surgical shunting, and how priapism relates to erectile dysfunction, testosterone, and GLP-1 medications.
A detailed clinical comparison of PT-141 (bremelanotide) vs PDE5 inhibitors (sildenafil, tadalafil, vardenafil, avanafil) covering mechanism, dosing, efficacy data, side effects, and how to choose.
A comparison of tadalafil 2.5 to 5 mg daily dosing versus 10 to 20 mg on-demand dosing for erectile dysfunction, including onset times, PDE5 inhibitor comparisons, Trimix protocols, and PT-141 dosing guidance.
A guide to topical lidocaine for premature ejaculation, covering evidence from randomized trials, correct application technique, dosing, side effects, and how it compares with PDE5 inhibitors like sildenafil, tadalafil, vardenafil, and avanafil.
A guide to yohimbine for ED, including how it compares to sildenafil, tadalafil, vardenafil, and avanafil, with dosing, side effects, and evidence from named trials.
Testosterone replacement therapy can trigger or worsen acne in some men. Learn why it happens, which treatments work, and how to manage it without stopping TRT.
What current labeling, guidelines, and male TRT research can—and cannot—establish about anastrozole dose decisions, estradiol results, monitoring, and tradeoffs.
An evidence map for off-label exemestane during testosterone therapy: what the current label and small male studies establish, what remains unknown, and what a prescribing decision must consider.
A complete clinical guide to aromatization, the estrogen pathway, SHBG, free vs total testosterone, and HPG axis suppression in men on TRT. Includes dosing context, lab interpretation, and management strategies.
Does testosterone replacement therapy raise blood pressure? Learn what the TRAVERSE trial found, how hematocrit and estradiol affect cardiovascular risk, and what monitoring your CBC and hormone panel actually requires.
A guide covering alcohol and TRT interactions, how fast TRT works, stopping TRT safely, and which supplements pair well with testosterone therapy.
Stopping TRT abruptly triggers a predictable hormonal crash. Learn what happens when you quit testosterone cold turkey, how to taper safely, and what to expect during recovery, backed by clinical evidence.
Testosterone replacement therapy can raise clotting risk and change how the body handles anticoagulant drugs. Here is what the evidence supports about TRT and warfarin, DOACs, hematocrit, and what to monitor.
TRT monitoring is hematocrit and PSA at 3-6 months, not monthly hematocrit. See full baseline and follow-up lab schedule with target ranges.
A complete clinical guide to cycling off TRT, including standard protocols, daily microdosing, intramuscular vs subcutaneous injection technique, and what to expect when you stop testosterone therapy.
A clinical comparison of testosterone cypionate and enanthate for TRT, covering half-life, injection frequency, side effects, cost, and how both stack up against gels, clomid, and enclomiphene.
A clinical comparison of testosterone cypionate injections and subcutaneous pellets for TRT, covering pharmacokinetics, cost, reversibility, dosing flexibility, and how each stacks up against enclomiphene, Clomid, and enanthate.
Make TRT blood tests interpretable: match draw timing to your prescription, distinguish midpoint from trough, and review dose changes with useful context.
The TRAVERSE trial is the largest RCT ever conducted on testosterone therapy and cardiovascular outcomes. It does not, however, give clinicians permission to skip careful CV risk stratification before initiating TRT. Here is why the HealthRX.com Medical Team screens exactly as before.
A clinical deep-dive into enclomiphene for men's testosterone optimization, covering mechanism, dosing, side effects, and how it stacks up against testosterone cypionate, enanthate, propionate, and pellet therapy.
TRT raises hematocrit in up to 40% of men. Learn why erythrocytosis happens, what hematocrit levels are dangerous, and how clinicians manage it with dose adjustments, phlebotomy, and monitoring protocols.
How the estradiol sensitive assay (LC-MS/MS) differs from a standard estradiol immunoassay, why the distinction matters for men on testosterone replacement therapy, and how to read an estradiol result alongside total testosterone, free testosterone, CBC, and lipid values.
Learn how free testosterone is calculated, what the Vermeulen equation means, which labs to order on TRT, and how to interpret total testosterone, SHBG, estradiol, CBC, and lipid results with specific reference ranges and clinical guidance.
A clinical comparison of HCG and enclomiphene for men on TRT or seeking to preserve fertility and natural testosterone production. Doses, mechanisms, evidence, and decision framework included.
A guide to HPG axis suppression on TRT, covering free vs total testosterone, bioavailable testosterone, SHBG, and estrogen aromatization with primary-source citations throughout.
A guide to testosterone injection technique for TRT, covering intramuscular vs subcutaneous routes, standard protocols, daily microdosing, needle selection, site rotation, and dose titration with primary-source citations.
A guide to TRT insurance coverage, prior authorization requirements, Medicare rules, monthly cost ranges, and how to reduce out-of-pocket expenses in 2025.
A clinical comparison of intramuscular and subcutaneous testosterone injection routes for TRT, covering pharmacokinetics, technique, dosing, and how to choose the right protocol with your prescriber.
LH and FSH drop to near-zero on TRT. Learn what suppressed gonadotropins mean for fertility, testicular size, and monitoring, plus the full lab panel every TRT patient needs.
A complete clinical guide to reading your lipid panel on testosterone replacement therapy, including how TRT affects HDL, LDL, triglycerides, and what ranges to target. prepared by the HealthRX.com Editorial Team.
Morning or evening TRT? Learn why the product and time since your last injection matter when scheduling and comparing testosterone blood tests.
A complete clinical guide to SHBG: how it binds testosterone, why free and bioavailable testosterone matter more than total T, how the HPG axis is affected, and what your lab numbers actually mean.
A guide to the standard TRT protocol for men, covering testosterone cypionate and enanthate dosing, IM vs. subcutaneous injection technique, daily microdosing, and lab-based dose titration.
A guide to testosterone compounded cream for men, covering absorption, dosing, how it stacks up against cypionate injections, pellets, and other formulations, with evidence from named trials and FDA-cleared references.