58 source-based articles maintained by the HealthRX.com Editorial Team.
Showing 58 of 58 clinical reviews.
A clinical breakdown of Aetna's Viagra coverage rules, prior authorization criteria, step therapy requirements, formulary tiers, and how to appeal a denial. prepared by the HealthRX.com Editorial Team.
A complete guide to Anthem (Elevance Health) Viagra coverage, prior authorization criteria, step therapy requirements, formulary tier placement, and how to appeal a denial. Reviewed by board-certified physicians.
A complete guide to BCBS Federated Viagra coverage, prior authorization criteria, formulary tiers, step therapy requirements, and how to appeal a denial.
A complete guide to Cigna coverage for Viagra (sildenafil): formulary tiers, prior authorization criteria, step therapy requirements, denial appeals, and real cost comparisons for 2024.
A guide to Humana's Viagra and sildenafil coverage policies, prior authorization criteria, formulary tiers, step therapy requirements, and how to appeal a denial in 2024 to 2025.
A detailed guide to Kaiser Permanente's Viagra coverage, formulary tier, prior authorization process, step therapy requirements, and how to appeal a denial, with cost alternatives and clinical context.
State Medicaid coverage of Viagra (sildenafil) varies widely. Learn which states cover it, prior authorization requirements, step therapy rules, appeal rights, and how to get sildenafil even if your claim is denied.
A complete guide to TRICARE coverage for Viagra (sildenafil): formulary status, prior authorization criteria, step therapy requirements, denial appeals, and cost-saving alternatives for military beneficiaries.
Find out whether UnitedHealthcare covers Viagra (sildenafil), what formulary tier it sits on, prior-authorization criteria, step-therapy rules, and how to appeal a denial.
How Alaska patients can seek a legitimate sildenafil prescription by telehealth or in person, verify a pharmacy, and review major safety and coverage questions.
A complete guide to getting sildenafil (Viagra) in California, including telehealth prescribing, 503A compounding pharmacies, Medi-Cal coverage, and what to expect from your first visit.
A clinical guide to getting sildenafil (Viagra) in Louisiana, covering telehealth prescribing, 503A compounding pharmacies, insurance coverage, and prescription transfer rules.
Evidence-based monitoring protocols for sildenafil use in adolescents aged 12-17, covering cardiac screening, pulmonary arterial hypertension tracking, growth velocity, hepatic panels, and mental health surveillance.
Sildenafil is used in children under 12 only for pulmonary arterial hypertension, not erectile dysfunction. What is established about FDA warnings, weight-based dosing, and monitoring, and what still needs verification against primary trial data.
A comprehensive clinical guide to sildenafil monitoring in children under 12, covering FDA-approved indications, weight-based dosing, hemodynamic surveillance, growth tracking, and off-label use evidence.
Evidence-based guide to sildenafil safety in children under 12, covering FDA warnings, the STARTS trial program, weight-based dosing for pulmonary arterial hypertension, and monitoring requirements.
Evidence-based protocols for switching between sildenafil (Viagra) and other PDE5 inhibitors including tadalafil, vardenafil, and avanafil. Covers dose equivalence, washout timing, and clinical decision points.
There is no FDA-approved sildenafil (Viagra) dosing for erectile dysfunction in adolescents aged 12-17. Learn why, what the pediatric data actually covers, and when specialist referral is appropriate.
A clinician-grade guide to every major sildenafil drug interaction, including nitrates, alpha-blockers, CYP3A4 inhibitors, and riociguat, with dosing adjustments and cited evidence.
Complete sildenafil dosing guide for adults aged 30 to 49, covering standard doses, timing, dose titration, drug interactions, and clinical trial evidence for erectile dysfunction treatment.
A guide to sildenafil dosing, titration, and safety considerations for adults in the 50-to-64 age group, covering starting doses, contraindications, and drug interactions.
A guide to sildenafil dosing for men aged 18 to 29, covering starting doses, titration, timing, drug interactions, and when ED in young men warrants further workup.
A clinician-grade guide to sildenafil food and supplement interactions, including high-fat meals, grapefruit, nitrate-containing foods, and popular supplements that alter PDE5 inhibitor metabolism.
A complete clinical guide to monitoring sildenafil (Viagra) in patients aged 65 and older, covering dose adjustments, drug interactions, cardiovascular checks, fall risk, and when to deprescribe.
Sildenafil is not FDA-approved for erectile dysfunction in anyone under 18. This evidence-based review covers what pediatric safety data exists, why off-label use carries serious risks, and what clinicians and parents need to know.
Sildenafil is typically taken on demand, but daily regimens exist. Learn the correct missed-dose protocol for both on-demand and daily sildenafil use, backed by clinical evidence.
Evidence-based monitoring guide for sildenafil (Viagra) in adults aged 30 to 49, covering cardiovascular checks, blood pressure tracking, hepatic and renal labs, vision screening, drug interactions, and follow-up intervals.
Evidence-based monitoring guide for sildenafil (Viagra) use in adults aged 50 to 64, covering cardiovascular screening, dose adjustments, drug interactions, and lab work.
Evidence-based monitoring guide for sildenafil use in young adults aged 18 to 29, covering cardiovascular screening, hormonal baselines, psychological assessment, and follow-up intervals.
A clinician-grade review of sildenafil off-label uses beyond erectile dysfunction, including Raynaud's, altitude sickness, heart failure, and antidepressant-induced sexual dysfunction, with evidence levels and trial data.
A clinical review of real-world evidence for sildenafil (Viagra) from patient registries, observational cohorts, post-marketing surveillance, and large-database studies beyond the original RCTs.
A guide to sildenafil (Viagra) safety in adults aged 30 to 49, covering cardiovascular risks, drug interactions, side effects, contraindications, and monitoring recommendations.
Evidence-based safety profile of sildenafil (Viagra) in adults aged 50 to 64, covering cardiovascular risk, drug interactions, dosing adjustments, and monitoring recommendations.
A clinically detailed guide to sildenafil safety in men aged 18 to 29, covering evidence-based dosing, contraindications, cardiovascular risks, fertility effects, and when to seek care.
Evidence-based guide to sildenafil (Viagra) safety in geriatric patients, covering dose adjustments, drug interactions, cardiovascular screening, falls risk, and deprescribing considerations for men 65+.
A guide on how to safely stop sildenafil (Viagra), covering the drug's mechanism, why it does not cause physical dependence, and when to taper or discontinue under medical supervision.
An evidence-based guide to sildenafil (Viagra) use during pregnancy and breastfeeding, covering mechanism, fetal risk, breast milk transfer, and current clinical guidance.
Find out exactly what Viagra and generic sildenafil cost in Montana in 2026, whether Montana Medicaid covers it, how compounded sildenafil works, and the cheapest legal paths to a prescription.
What Viagra and generic sildenafil cost in Nevada in 2026, including cash prices, Medicaid rules, insurance coverage, compounded options, and how to save.
Current Viagra and generic sildenafil prices in Wisconsin for 2026, including cash-pay costs, Medicaid PA requirements, insurance coverage, compounded options, and telehealth access.
A comparison of sildenafil (Viagra) pricing against tadalafil, vardenafil, and avanafil, with a boundary map of what the evidence does and does not support and a decision framework for choosing between them.
How to dose sildenafil (Viagra) safely in patients with hepatic impairment. Covers pharmacokinetics, Child-Pugh adjustments, cirrhosis data, and clinical monitoring.
How to dose sildenafil (Viagra) safely in patients with kidney disease. Covers mild, moderate, and severe renal impairment, dialysis considerations, and FDA label guidance backed by pharmacokinetic data.
A clinical review of sildenafil's next-generation formulations, novel PDE5 inhibitor pipeline candidates, and emerging delivery technologies beyond the traditional oral tablet.
Evidence-based guide to sildenafil (Viagra) dosing in adults 65 and older, covering starting doses, renal and hepatic adjustments, drug interactions, and deprescribing considerations.
The complete history of Viagra (sildenafil), from its origins as a failed angina drug to FDA approval in 1998 and beyond. Mechanism of action, key clinical trials, patent expiry, and ongoing research.
A physician-level review of sildenafil (Viagra) dosing, drug interactions, and safety evidence in transplant recipients, people living with HIV, patients with renal or hepatic impairment, and other special populations.
A clinical review of sildenafil (Viagra) manufacturing origins, global supply chain evolution, FDA shortage records, and current generic availability for erectile dysfunction treatment.
A physician-level breakdown of how sildenafil (Viagra) works, tracing the full NO-cGMP-PDE5 pathway, smooth muscle relaxation, and hemodynamic effects with cited clinical evidence.
A clinician-grade guide to the labs, exams, and follow-up timeline for sildenafil (Viagra), from baseline cardiovascular screening through long-term monitoring.
Clinical guide to sildenafil (Viagra) overdose: symptoms, emergency treatment, nitrate co-ingestion dangers, priapism management, and prevention of accidental excess dosing.
A detailed timeline of Viagra's patent protections, key legal battles, and the arrival of generic sildenafil, with clinical context on PDE5 inhibitor pharmacology.
What is and isn't established about genetic variation in CYP2C9, CYP3A4, PDE5A, NOS3, and GUCY1A3 and how it may relate to sildenafil (Viagra) efficacy and side effects, with a practical decision framework for when genetic testing is worth pursuing.
An MD-level breakdown of sildenafil (Viagra) pharmacokinetics covering absorption, distribution, metabolism, and excretion, with primary PubMed and FDA citations throughout.
A clinician-grade overview of sildenafil (Viagra) regulatory status across the United States, European Union, Canada, and United Kingdom, including OTC reclassification, generic availability, and prescribing frameworks.
A comprehensive guide to sildenafil (Viagra) safety signals, FDA regulatory actions, post-market surveillance findings, drug interactions, and clinical risk stratification, with primary-source citations throughout.
Sildenafil (Viagra) is taken by mouth, not by injection. Learn how sildenafil works, when intracavernosal injection (ICI) therapy becomes the next step, and the correct self-injection technique for alprostadil and trimix.
A guide to sildenafil (Viagra) storage conditions, shelf-life data, chemical stability research, and what happens when tablets degrade. Includes PubMed-cited evidence and FDA guidance.