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Tadalafil
Ready for the whole weekend. Or every day.

- Works up to 36 hours
- As needed or daily
- Licensed US pharmacy
Generic tadalafil, as needed or daily
Tadalafil is the active ingredient in Cialis®. Taken as needed, it works for up to 36 hours. Taken as a low daily dose, it keeps you ready without planning around a pill.
- Form
- Tablet
- How to take
- As needed or once daily
- Lasts
- Up to 36 hours
- Made by
- FDA-approved manufacturer; dispensed by a state-licensed pharmacy
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No charge unless a provider approves · Start assessment
12-month price lock · Licensed providers · Pharmacy named on every label
Quick answer
Tadalafil at a glance
Tadalafil is the active ingredient in Cialis®.
How it’s taken: tablet, as needed or once daily.
It starts at $49/mo at Surna, with provider care included.
A prescription from a licensed provider is required. It’s an FDA-approved generic, dispensed by a state-licensed pharmacy.
Compare: Sildenafil vs. tadalafil
Updated
How Tadalafil works
Tadalafil blocks PDE5, an enzyme that limits blood flow, so your body’s natural response to arousal works more easily. Sexual stimulation is still needed.
It stays active in your body much longer than sildenafil, which is why one dose can last up to 36 hours.
What to expect
Everyone responds differently. Your provider checks in and adjusts your plan along the way.
First use
Take an as-needed dose at least 30 minutes before sex, or start your daily dose.
Daily dosing
It can take about 5 days of daily use to reach a steady level in your body.
Ongoing
Your provider adjusts your dose or switches between as-needed and daily if you want.
Is it right for you?
Your provider makes the final call after reviewing your health history.
Often a good fit
- Want flexibility over a weekend
- Rather not plan around a pill (daily)
- Had side effects with sildenafil
Usually not a fit
- Take nitrates for chest pain, like nitroglycerin, or the medication riociguat
- Told by a doctor that sexual activity isn't safe for your heart
- Recent heart attack or stroke
- Use recreational 'poppers' (amyl nitrite)
Not a complete list. Tell your provider about all health conditions and medications.
Possible side effects
Most side effects are mild. Your care team is a message away if something doesn't feel right.
More common
Get medical help right away for
- An erection that lasts more than 4 hours
- Sudden loss of vision in one or both eyes
- Sudden decrease or loss of hearing
- Chest pain, dizziness, or nausea during sex
For a medical emergency, call 911.
How to take it
Always follow the directions on your label and from your provider.
As needed
Take at least 30 minutes before sex, no more than once a day.
Daily
Take at the same time every day, with or without food.
Don't double up
Don't take an as-needed dose on top of a daily dose unless your provider tells you to.
Tadalafil questions
As needed or daily: which is better?
It depends on your routine. As needed works well if sex is occasional. Daily is better if you want to be ready any time without planning.
Does food affect tadalafil?
No. It works the same with or without food.
Is daily tadalafil used for anything else?
Yes. Daily tadalafil is also FDA-approved to treat urinary symptoms from an enlarged prostate (BPH).
Related treatments
See if Tadalafil is right for you.
Answer a few questions and a licensed provider will review your options.
Important safety information
Last updated
Do not take this medication if you take nitrates or riociguat, as the combination can cause a sudden, dangerous drop in blood pressure. Sexual activity can strain your heart; stop and get medical help if you have chest pain, dizziness, or nausea during sex. Get emergency care for an erection lasting more than 4 hours, or for sudden vision or hearing loss. Tell your provider about all medications you take, including alpha-blockers and HIV medications. Cialis® is a registered trademark of its owner. Surna Health is not affiliated with its owner.
This is not a complete list of risks. Talk with your provider and read the full prescribing information or medication guide.
