Sildenafil
100% Online — No Office Visit Required
Sildenafil is the generic form of Viagra and one of the most prescribed medications for erectile dysfunction worldwide. It works within 30–60 minutes and lasts 4–6 hours.
Sildenafil
Provider-reviewed. Direct-pay, no insurance hassle.
What Is Sildenafil?
Sildenafil is a PDE5 inhibitor that relaxes smooth muscle in the penile vasculature, increasing blood flow during sexual stimulation. It does not cause erections without arousal.
What It May Help With
Sildenafil is used to treat erectile dysfunction — difficulty achieving or maintaining erections sufficient for sexual activity.
Who May Be a Candidate
Sildenafil is appropriate for most men with ED who don't have contraindications (notably, men on nitrates cannot use PDE5 inhibitors). Provider review confirms safety.
How OakMD Works
OakMD is a telemedicine platform connecting eligible adults with licensed providers. If you're interested in Sildenafil, the process begins with a brief online intake form. A licensed provider will review your health history, symptoms, and goals — and determine if treatment is appropriate for you.
If you are a candidate, your provider will create a personalized treatment plan and guide you through next steps. There are no in-person visits required.
Common Questions
What is the difference between sildenafil and Viagra?
They are the same drug. Sildenafil is the generic form. Viagra is the brand name made by Pfizer. The generic is bioequivalent and typically much less expensive.
Does sildenafil work for everyone?
Sildenafil is effective for approximately 70–80% of men with ED. Some men with severe vascular disease or other underlying causes may respond better to higher doses or different medications.
Ready to Get Started?
Complete a brief online intake. A licensed provider will review your information and determine if treatment is appropriate for you.
Medical Disclaimer: The information on this page is provided for educational purposes only and does not constitute medical advice. OakMD is a telemedicine platform. All treatments are prescription-based, subject to provider review, and may not be appropriate for all individuals. A licensed provider will evaluate your medical history and determine eligibility. Consult a qualified healthcare professional before starting any new treatment.
Three Steps to Start
Complete your order
Choose your plan, share basic health information at checkout, and place your order.
Provider review
A licensed provider reviews your information and approves a personalized plan.
Receive your medication
Your medication is shipped discreetly to your door from a licensed pharmacy, with ongoing care messaging available.
About This Program
How quickly does sildenafil work?
Sildenafil typically begins working within 30–60 minutes and lasts about 4–6 hours. Effects can be delayed by a high-fat meal.
Do I need lab work for sildenafil?
No. A provider review of your health history is required, but routine lab work is not part of starting sildenafil.
Are there medications that interact with sildenafil?
Yes — most notably nitrates. Disclose all current medications during checkout so a provider can screen for contraindications.
Prescription treatments are subject to provider review. Not all individuals are candidates for treatment. OakMD does not bill insurance directly. Compounded medications are dispensed by licensed compounding pharmacies.