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Cialis® (tadalafil)

Cialis® is a prescription, brand-name medication approved by the Food and Drug Administration (FDA) to treat symptoms of erectile dysfunction (ED) and benign prostatic hyperplasia (BPH).

Cialis is a safe and effective option for most men affected by one of these conditions. Cialis can also be used to treat symptoms of ED and BPH together. Because Cialis is only available with a prescription, it’s important to talk to a healthcare professional to determine if Cialis is right for you.

There are two ways to take Cialis®: as needed or as a daily medication.

If you take Cialis as needed to treat ED, take the pill with a glass of water with or without food at about an hour before sexual activity. The medication can last in your system for up to 36 hours, so you may not need a second dose for repeat sexual activity the next day. Never take more Cialis than is prescribed by your doctor.

Older men may be prescribed a very low dose of Cialis to take every day. This can make sexual activity more spontaneous, but it isn’t a good option for younger men. If you take Cialis every day, take it at the same time every day with or without food.

Keep in mind that dosing varies based on your symptoms, medical history, other medications, and response to the medication. Work with your healthcare provider to determine the correct dosing for you.

Like all medications, side effects can occur when taking Cialis®. The most common side effects include:

  • Headache
  • Indigestion
  • Back pain
  • Nasal congestion
  • Flushing
  • Muscle aches
  • Pain in arms or legs

Serious side effects include:

  • Difficulty breathing
  • Clumsiness or unsteadiness
  • Unexpected bleeding including in the brain or in the lungs
  • Buzzing or ringing in the ears
  • Redness, swelling, or sores on the mouth, tongue, or lips
  • Trembling and shaking 
  • Vomiting
  • Low blood pressure
  • Priapism, an erection that lasts longer than four hours or is painful

If you or someone you know has taken Viagra® and experiences an erection that is painful or lasts more than four hours, vision loss, hearing loss, trouble breathing, a severe headache, or any other symptoms that worry you, go to the emergency room or call 911.

Cialis® can interact with other medications. Talk with your healthcare provider if you’re on any of the following, and always let your prescriber know about all medications and supplements you take:

  • Alpha blockers
  • Nitrates
  • Riociguat (Adempas®)
  • St. John’s wort
  • Antibiotics
  • HIV medication
  • Oral antifungals
  • Other ED medications

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Calculate the price of your generic Cialis® prescription.

Tadalafil

20 mg

11

per month

Save 50%+ compared to other pharmacies

Tablet

Quantity: 6

Get tadalafil from K Health for a fraction of the cost.

Others

5 mg

$0.90

$8.00

10 mg

$1.80

$44.00

15 mg

$1.80

$44.00

Price reflects a 10% discount when ordering a 3-month supply.

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1

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Answer a few questions about your habits and history to see if treatment from K is right for you.

2

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Let us know your preferred medication, dosage, quantity and delivery schedule.

3

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Your personalized treatment plan and prescription info will be shared within 24 hours.

4

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Your prescription will arrive within two days after approving your treatment plan.

Have any questions?

How long does it take for tadalafil to work?

Tadalafil takes about 30 minutes to take effect (but may take up to two hours) and can last in your system for up to 36 hours.

How much does tadalafil cost?

Costs of tadalafil will vary depending on your medical provider and pharmacy. With K Health, you can speak to a doctor and get a tadalafil prescription for as low as $11.

How does tadalafil work?

Tadalafil is a phosphodiesterase-5 (PDE5) inhibitor. In the treatment of ED, tadalafil works by relaxing the penile muscles, expanding blood vessels that go into the penis, and improving penile blood flow during sexual stimulation. This helps get and maintain better erections. In the treatment of BPH, tadalafil helps to relax the bladder and prostate muscles to improve symptoms like painful or frequent urination. And in the treatment of pulmonary arterial hypertension (PAH), tadalafil can help to relax blood vessels in the lungs to allow blood to flow more easily and improve the ability to exercise.

How long does tadalafil last?

Tadalafil can last in your system for up to 36 hours. In the treatment of erectile dysfunction (ED), it can help men get erect at any time during that window.

Can you buy Viagra or Cialis online?

You can buy Viagra® and Cialis® online if you have a prescription from a doctor. With K Health, you can text with a doctor, get a generic Viagra® or Cialis® prescription, and get your medication shipped directly to your home.

Can you buy tadalafil online?

You can buy tadalafil online if you have a prescription from a doctor. With K Health, you can text with a doctor, get a tadalafil prescription, and get your medication shipped directly to your home.

Can you buy sildenafil online?

You can buy sildenafil online if you have a prescription from a doctor. With K Health, you can text with a doctor, get a sildenafil prescription, and get your medication shipped directly to your home.

Can you buy erectile dysfunction medication online?

Yes, you can buy erectile dysfunction medication online, but you will need a prescription from a doctor to facilitate the purchase. With K Health, you can text with a doctor and get your ED prescription delivered straight to your door.