Sildenafil & Tadalafil
Prescription treatment for erectile dysfunction
Choose a form
Not available yet. Join the waitlist and we will email you when it launches in your state.
- U.S.-licensed providers and pharmacies
- 100% online, private consultation
- Prescription only if a provider decides it is right for you
- Two proven medicines to choose from
- Discreet packaging and online care
- Dose matched to your health
- Licensed U.S. providers
- Licensed U.S. pharmacies
- Price shown before you pay
- Pay for treatment only if prescribed
- Replies within one business day
- Online since 2002
How ED medicines work
Sildenafil and tadalafil belong to a group of medicines called PDE5 inhibitors. They improve blood flow to the penis in response to arousal, making it easier to get and keep an erection. They do not cause an erection on their own.
Sildenafil works for about four hours and is taken shortly before sex. Tadalafil lasts up to 36 hours, and a low daily dose is also an option. Your provider will help you choose.
Who it may be prescribed for
- Men who have trouble getting or keeping an erection
- Men who do not take nitrate medicines for chest pain
- Men whose heart health allows sexual activity

How it works
Get your treatment in three simple steps
01Answer a few health questions
Tell us about your health, medicines and goals in an online questionnaire that takes about ten minutes.
02A licensed provider reviews it
A U.S.-licensed provider in your state reviews your answers, usually within about 24 hours, and messages you if they need more.
03Your treatment ships to you
If treatment is right for you, a licensed pharmacy prepares it and ships it to your door with clear instructions.
Why choose us
Real people, real support
HealthBuyRx does not stop at a prescription. Every plan includes access to your provider and a customer care team that answers.
Message your provider
Questions about your dose or side effects? Message your provider from the patient portal and hear back from someone who knows your history.
Start your visit
Customer care that answers
Our U.S.-based team helps with orders, billing and delivery by email or phone, and replies within one business day.
Contact our team
Sildenafil & Tadalafil
Frequently asked questions
Can't find what you need? Our team is here to help.
See all FAQsWhich is better, sildenafil or tadalafil?
Both work well. Sildenafil suits planned moments; tadalafil lasts longer and can be taken daily. Your provider will recommend one based on your health and preferences.
Is the packaging discreet?
Yes. Orders ship in plain packaging.
When will ED treatment be available?
Join the waitlist and we will email you when it launches in your state.
Important safety information
Never take sildenafil or tadalafil with nitrates (such as nitroglycerin) or riociguat, because the combination can cause a dangerous drop in blood pressure. Common side effects include headache, flushing, stuffy nose, indigestion and, with tadalafil, back or muscle aches. Get emergency help for an erection lasting more than four hours, or for sudden loss of vision or hearing.