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Treatment guides
Straightforward, factual explainers on how treatments work and how OpenDoseRx handles every order. Educational only — a licensed provider makes every clinical decision.
104 guides across 10 topics
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New to compounded telehealth? These cover how it all works.
How online prescriptions work: intake, provider review, and pharmacy
A plain-language walkthrough of the telehealth path — from choosing a strength to intake, independent provider review, and licensed U.S. pharmacy fulfillment.
Compounded vs. FDA-approved medications: what's the difference?
A plain-language look at what "FDA-approved" and "compounded" actually mean, why both exist, and how each is regulated.
What a medical intake covers and why it matters
A plain-language look at the categories of information a telehealth intake collects and how each one gives a reviewing provider the context to make a clinical decision.
Performance & vitality
10 guides
7 minHow testosterone works in the body: the androgen pathway
A plain-language look at testosterone as an androgen and how androgen-receptor signaling is understood to act on tissues across the body.
7 minHow enclomiphene is understood to act on the HPG axis
An educational overview of how enclomiphene is understood to interact with the hypothalamic-pituitary-gonadal axis through estrogen-receptor modulation.
6 minHow aromatase inhibitors are understood to work in estrogen management
A neutral, mechanism-focused look at the aromatase enzyme and how the medications known as aromatase inhibitors are understood to act on it.
9 minHow sermorelin is understood to work: the growth hormone-releasing hormone pathway
A neutral, mechanism-focused look at growth hormone-releasing hormone (GHRH) and how the compounded peptide sermorelin is understood to act on the GHRH receptor in the pituitary.
Weight loss & GLP-1 therapy
8 guides
4 minSemaglutide vs. tirzepatide: how GLP-1 and GIP/GLP-1 medications differ
A neutral, mechanism-focused comparison of two prescription incretin medications and the gut-hormone receptors they act on.
6 minHow GLP-1 medications interact with appetite and digestion
A neutral, mechanism-focused look at how GLP-1 receptor agonism engages the gut-brain satiety axis and the gastric-emptying signals tied to hunger and fullness.
7 minOral vs. injectable GLP-1 medications: how the routes differ
A neutral, mechanism-focused look at how injecting a GLP-1 peptide under the skin and absorbing one by mouth differ in absorption and bioavailability.
8 minHow ondansetron (Zofran) is understood to work: the 5-HT3 pathway
A plain-language look at how ondansetron, an antiemetic often discussed alongside GLP-1 tolerability, is understood to act on the serotonin 5-HT3 pathway in the gut and brainstem.
Cardiovascular treatments
14 guides
6 minHow statins work: the cholesterol synthesis pathway
A plain-language, mechanism-focused look at the cholesterol-synthesis pathway and how statins act on the enzyme that helps drive it.
6 minACE inhibitors and ARBs: how they are understood to act on the renin-angiotensin system
An educational overview of the renin-angiotensin system and how ACE inhibitors and angiotensin-receptor blockers are understood to act within it.
6 minHow beta blockers are understood to act on beta-adrenergic receptors
An educational, mechanism-focused overview of how beta blockers such as propranolol and nebivolol are understood to act on beta-adrenergic receptors within the sympathetic nervous system.
9 minEzetimibe vs. statins: two different cholesterol-lowering mechanisms
A plain-language, mechanism-focused comparison of two cholesterol-lowering approaches: one understood to act on cholesterol absorption in the gut, the other on the body's own manufacture of cholesterol in the liver.
Metabolic health
10 guides
6 minHow metformin works: the biguanide mechanism
A neutral, mechanism-focused look at how metformin, a biguanide, is understood to act on the liver, insulin sensitivity, and AMPK signaling.
7 minHow acarbose is understood to work: the alpha-glucosidase inhibitor pathway
A neutral, mechanism-focused look at how acarbose, an alpha-glucosidase inhibitor, is understood to act on the enzymes that digest carbohydrates in the small intestine.
8 minExtended-release vs. immediate-release metformin: how the formulations differ
A neutral, formulation-focused look at how extended-release and immediate-release metformin differ in the way each tablet releases the drug, and how that shapes absorption over time.
7 minLow-dose naltrexone (LDN): the history and proposed mechanism
A plain-language history of naltrexone — how it was developed as an opioid antagonist — and the low-dose opioid-rebound and immune-modulation mechanisms studied in research.
Hair loss treatments
8 guides
3 minHow finasteride and minoxidil work for hair loss
A plain-language look at the biology of pattern hair loss and how these two prescription ingredients act on different parts of the process.
8 minDHT and the hair growth cycle explained
A neutral, mechanism-focused look at the androgen dihydrotestosterone and how it is understood to relate to the follicle's growth, transition, and rest phases.
7 minHow ketoconazole shampoo is understood to work: the antifungal mechanism on the scalp
A plain-language look at how an azole antifungal is designed to interrupt ergosterol synthesis in fungal cells, and why that mechanism is studied in the context of the scalp.
8 minDutasteride vs. finasteride: how the two 5-alpha-reductase inhibitors differ
A neutral, mechanism-focused comparison of two 5-alpha-reductase inhibitors and the enzyme isoenzymes each one is understood to act on.
Sleep support
9 guides
6 minHow prescription sleep medications work: the main pathways
A plain-language look at the signaling systems behind the sleep-wake cycle and how the main classes of prescription sleep medication are understood to act on them.
5 minHow trazodone and low-dose doxepin are understood to be used off-label for sleep
A neutral, mechanism-focused look at two prescription medications that originated as antidepressants and are discussed off-label in sleep contexts.
9 minWhat sleep architecture is: REM, deep sleep, and the sleep cycle explained
A plain-language look at how a night of sleep is structured — the NREM stages, REM, the repeating sleep cycle, and the homeostatic and circadian drives that shape when we sleep.
9 minHistamine and sleep: why H1 receptor antagonism is associated with drowsiness
A plain-language look at the brain's histamine system, the H1 receptor involved in wakefulness, and why reducing signaling at that receptor is understood to be associated with drowsiness — the pathway relevant to low-dose doxepin.
Skincare & dermatology
9 guides
7 minHow tretinoin works: retinoids and skin cell turnover
A plain-language look at the biology of retinoids — how tretinoin engages retinoic-acid receptors and is understood to influence how the skin renews itself.
5 minCopper peptides (GHK-Cu): the tripeptide-copper complex in skin
GHK-Cu is a tripeptide bound to a copper ion; this guide describes the complex and the skin-signaling roles attributed to it in the scientific literature.
7 minHow bimatoprost is understood to affect eyelash growth: the prostaglandin analog pathway
A plain-language look at how bimatoprost, a prostaglandin analog first used in glaucoma care, is understood to act on the eyelash growth cycle.
8 minGHK-Cu troche vs. cream: how the delivery routes differ
GHK-Cu is a copper-bound tripeptide offered here in two compounded forms; this guide describes how a sublingual troche and a topical cream present that same complex to the body differently.
Sexual health & intimacy
7 guides
3 minSildenafil vs. tadalafil: how they compare
A neutral look at two PDE5 inhibitors — their shared mechanism, general differences in onset and duration of action, and the forms they come in.
7 minHow PT-141 (bremelanotide) works: the melanocortin pathway
A neutral, mechanism-focused look at the melanocortin system and how bremelanotide is understood to act on it, in contrast to the vascular route of PDE5 inhibitors.
5 minHow PDE5 inhibitors are understood to act in erectile physiology
An educational overview of the PDE5 inhibitor class and the nitric oxide and cGMP signaling pathway it is understood to act on.
8 minWhat oxytocin is: the neuropeptide and what research describes
A neutral, mechanism-focused look at oxytocin as a hypothalamic neuropeptide and the physiological and social-bonding roles researchers have studied.
Longevity & healthy aging
11 guides
7 minNAD+ precursors: what NMN and NR are and how they work
A mechanism-focused look at NAD+ as a cellular coenzyme and how the precursors NMN and NR feed the salvage pathway that regenerates it.
6 minHow rapamycin (sirolimus) is understood to act on the mTOR pathway
A mechanism-focused overview of rapamycin (sirolimus), the mTOR signaling pathway, and why mTORC1 and autophagy are areas of research interest.
8 minNAD+ injectable vs. sublingual: how the delivery routes differ
A neutral, mechanism-focused look at how injecting NAD+ and absorbing it under the tongue differ in how the coenzyme travels from the point of administration into the bloodstream.
9 minWhat glutathione is: the antioxidant tripeptide and its delivery forms
A mechanism-focused look at glutathione — the tripeptide built from glutamate, cysteine, and glycine — and how its reactive thiol, redox cycle, and delivery forms are understood to work.
How it all works
18 guides
Compounded vs. FDA-approved medications: what's the difference?
A plain-language look at what "FDA-approved" and "compounded" actually mean, why both exist, and how each is regulated.
How online prescriptions work: intake, provider review, and pharmacy
A plain-language walkthrough of the telehealth path — from choosing a strength to intake, independent provider review, and licensed U.S. pharmacy fulfillment.
503A vs. 503B compounding pharmacies explained
How the two U.S. compounding pharmacy categories differ in oversight, standards, and the products they prepare.
What a medical intake covers and why it matters
A plain-language look at the categories of information a telehealth intake collects and how each one gives a reviewing provider the context to make a clinical decision.