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The references let you see where an explanation begins and what a provider actually advertises.

A medical reference supplies context; a provider page describes its own service or product. Those roles are different. Every article and profile includes the sources relevant to its text. Citing a resource does not imply that its publisher endorses Close or a featured provider.

The references behind this conversation

Source pages checked October 6, 2026. Provider material describes advertised services. Medical resources offer general context and do not endorse Close or its sponsors.

  1. CoreAge Rx: 4Play product informationSponsored provider; advertised formulation
  2. CoreAge Rx: 4Play offer and refill termsSponsored provider; advertised terms
  3. Hims: ED treatment optionsProvider-owned product and price page
  4. Ro: Erectile dysfunction treatmentProvider-owned product page
  5. BlueChew: Plans and GOLD formulationProvider-owned product page
  6. Rugiet: Ready ingredients and compoundingProvider-owned help article
  7. Lemonaid: ED service and eligibilityProvider-owned service and price page
  8. GoodRx Care: ED subscriptionProvider-owned subscription offer
  9. Strut: Super Strut formula and strength-based pricingProvider-owned product offer
  10. FDA: Compounding questions and answersRegulatory explanation
  11. NIDDK: Diagnosis of erectile dysfunctionFederal patient information
  12. NIDDK: Symptoms and causes of erectile dysfunctionFederal patient information
  13. NIDDK: Treatment for erectile dysfunctionFederal patient information
  14. MedlinePlus: SildenafilPatient medication information
  15. MedlinePlus: TadalafilPatient medication information
  16. HHS: Protecting data and privacy in telehealthFederal patient privacy guidance
  17. FDA: How to buy medicines safely from an online pharmacyFederal pharmacy-verification guidance
  18. Pfizer: Viagra prescribing and patient informationManufacturer labeling; accessed October 6, 2026
  19. NIA: Sexuality and intimacy in older adultsFederal information on intimacy, health and aging
  20. Hello Cake: ED Meds product pageProvider-owned product offer
  21. Hello Cake: ED medication costsProvider-owned subscription and payment terms
  22. Hello Cake: ED formulations and strengthsProvider-owned formulation description
  23. TelyRx: Sildenafil product and provider-review feeProvider-owned product and fee page
  24. TelyRx: Service and payment informationProvider-owned service description
  25. Cialis: Manufacturer prescribing information, revised March 2026Eli Lilly approved labeling on DailyMed

Our method and sponsorship notes explain how uncertainty and commercial relationships are handled.