Tadalafil is usually taken only once per day.
Also, men taking nitrate medications are advised not to take any ED drugs. While the manufacturer suggests that a 30-day supply of daily Cialis should cost about the same as eight pills of 36-hour Cialis a month, there's no way to enforce this. Check your insurance policy and local pharmacies for price information. – By Matthew Solan Executive Editor, Harvard Men's Health Watch As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician. Get the latest in health news delivered to your inbox! Generic name: tadalafil [ ta-DAL-a-fil ] Brand names: Adcirca, Cialis Drug classes: Agents for pulmonary hypertension, Impotence medications Tadalafil relaxes muscles of the blood vessels and increases blood flow to particular areas of the body. Tadalafil under the name of Cialis is used to treat erectile dysfunction (impotence) and symptoms of benign prostatic hypertrophy (enlarged prostate). Another brand of tadalafil is Adcirca, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended. Tadalafil can be taken with or without food.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Cialis Professional | 20mg | 270 + 6 Pills | 623.07€ 593.40€ | |
| Cialis Black | 80mg | 120 + 8 Pills | 264.77€ 252.16€ | |
| Cialis Original | 20mg | 4 Pills | 41.99€ 39.99€ | |
| Cialis Black | 80mg | 180 + 10 Pills | 356.64€ 339.66€ | |
| Cialis Generic | 40mg | 360 + 10 Pills | 477.87€ 455.11€ | |
| Cialis Generic | 60mg | 90 + 6 Pills | 196.67€ 187.30€ | |
| Cialis Professional | 20mg | 20 Pills | 78.33€ 74.60€ | |
| Cialis Generic | 5mg | 120 + 6 Pills | 132.92€ 126.59€ | |
| Cialis Original | 20mg | 34 + 2 Pills | 183.99€ 175.23€ | |
| Cialis Soft Tabs | 20mg | 90 + 6 Pills | 216.71€ 206.39€ | |
| Cialis Professional | 40mg | 270 + 6 Pills | 898.37€ 855.59€ | |
| Cialis Professional | 40mg | 90 + 2 Pills | 348.59€ 331.99€ | |
| Cialis Generic | 2.5mg | 360 + 10 Pills | 260.03€ 247.65€ |
For erectile dysfunction, take Cialis just before sexual activity but not more than once per day. It can be used up to 36 hours before sexual activity.
Do not take this medicine if you also use: riociguat (to treat pulmonary arterial hypertension); or riociguat (to treat pulmonary arterial hypertension); or a nitrate drug (for chest pain or heart problems) such as nitroglycerin, isosorbide dinitrate, isosorbide mononitrate, or recreational drugs such as amyl nitrate or nitrite "poppers". a nitrate drug (for chest pain or heart problems) such as nitroglycerin, isosorbide dinitrate, isosorbide mononitrate, or recreational drugs such as amyl nitrate or nitrite "poppers". Some tadalafil can remain in your bloodstream for 2 or more days after each dose you take (longer if you have liver or kidney disease). To make sure this medicine is safe for you, tell your doctor if you have ever had: angina (chest pain), high or low blood pressure; angina (chest pain), high or low blood pressure; pulmonary hypertension (unless you are taking tadalafil for this); pulmonary hypertension (unless you are taking tadalafil for this); a condition called pulmonary veno-occlusive disease (narrowing of the veins that carry blood from the lungs to the heart); a condition called pulmonary veno-occlusive disease (narrowing of the veins that carry blood from the lungs to the heart); liver or kidney disease (or if you are on dialysis); liver or kidney disease (or if you are on dialysis); vision loss, or retinitis pigmentosa (an inherited condition of the eye); vision loss, or retinitis pigmentosa (an inherited condition of the eye); a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia; a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia; a physical deformity of the penis (such as Peyronie's disease), or an erection lasting longer than 4 hours; a physical deformity of the penis (such as Peyronie's disease), or an erection lasting longer than 4 hours; health problems that make sexual activity unsafe. health problems that make sexual activity unsafe.
Sudden vision loss has occurred in a small number of people taking medicines like tadalafil (Viagra or others). Most of these people already had certain eye problems or risk factors for blood vessel disorders (heart disease, diabetes, high blood pressure, high cholesterol, coronary artery disease, smoking, or being over 50 years old). It is not clear whether the medicine was the actual cause of vision loss. Sudden hearing loss has also been reported with tadalafil. Stop tadalafil and call your doctor immediately for any hearing loss, decrease in hearing, or ringing in the ears. Cialis can help achieve an erection when sexual stimulation occurs.
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Tadalafil (Cialis) is one of the most popular erectile dysfunction (ED) drugs. The drug comes in low-dose versions that can be taken daily. This means you can have sex at any time, rather than needing to take a pill from time to time as needed like other ED brands. The starting dose for daily-use Cialis is 2.5 original cialis 20mg milligrams (mg). If that doesn't work, you can increase your daily dose up to 5 mg. An erection will not occur just by taking a pill.
| Tip | Explanation | Additional Advice |
|---|---|---|
| Take on an empty stomach | Absorption is faster without food | Avoid heavy or fatty meals |
| Consistent Timing | Use regularly if prescribed for BPH or PE | Adhere to schedule |
| Communicate with Partner | Set expectations and discuss response | Enhances intimacy |
| Avoid Excess Alcohol | Reduces risk of side effects | Moderate consumption |
Do not take Cialis for erectile dysfunction if you are taking Adcirca for pulmonary arterial hypertension.
| Condition | Reason | Advice |
|---|---|---|
| Nitrate Medication Use | Risk of severe hypotension | Do not take concurrently |
| Severe Cardiovascular Disease | Increased risk during sexual activity | Consult doctor before use |
| Liver Impairment | Altered metabolism | Adjust dosage or avoid |
| Retinal Disorders | Potential exacerbation of existing issues | Medical consultation required |
Store at room temperature away from moisture and heat.
But is this the right approach for you—or are you better off with traditional ED drugs like Viagra, Levitra, or even the nondaily version of Cialis? If you are contemplating Cialis for daily use, consider these questions and then discuss it with your doctor: If it's two or more times a week, a daily pill might be a reasonable choice, since the drug continually circulates in your bloodstream. A daily pill clears the path for sex at any time—if the drug works for you. (Remember, just like other ED drugs, it may not work for everyone). On the other hand, the 36-hour window offered by the nondaily version of Cialis might offer enough spontaneity.
Have side effects of your current ED pill been bothering you? Taking a daily low-dose pill may reduce side effects, though it may reduce effectiveness as well. In studies, the most common daily pill side effects were headache, muscle pain, indigestion, and back pain. Men taking Cialis for daily use can experience a worrisome drop in blood pressure if they drink too much. Ask your doctor if any medications or supplements you take might interact with a daily erectile dysfunction pill, including blood pressure drugs, antifungal drugs, and HIV drugs. If tadalafil is used as needed, you are not likely to be on a dosing schedule.
Tadalafil is effective for up to 36 hours after you take it, making it longer-lasting than other medications for ED. Research has shown they are equally effective at treating ED, last the same amount of time, and have the same side effects risk. The main difference between the two is that Cialis is a brand name, which typically means it’s more expensive than generic tadalafil. *This information is from the label for brand name Cialis®. See the Full Prescribing Information for more complete information.
Tadalafil, the active ingredient in Cialis, may also be the active ingredient in other medications, and this information may not be accurate for all medications that include the active ingredient tadalafil. This article is for informational purposes only and does not constitute medical advice. The information contained herein is not a substitute for and should never be relied upon for professional medical advice. Always talk to your doctor about the risks and benefits of any treatment. Learn more about our editorial standards here. If you take tadalafil every day and you miss a dose, take the missed dose as soon as you remember.
| Use Case | Description | Common Frequency |
|---|---|---|
| Erectile Dysfunction | Improve blood flow for erections | As needed, prior to activity |
| Pulmonary Hypertension | Off-label use for lowering pulmonary pressure | Prescribed under specialist care |
| BPH (Benign Prostatic Hyperplasia) | Sometimes prescribed for urinary symptoms | Off-label or combined therapy |
| Performance Anxiety | Enhances confidence in sexual activity | As prescribed by doctors |
Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
Do not take tadalafil if you are also using a nitrate drug for chest pain or heart problems, including nitroglycerin, isosorbide dinitrate, isosorbide mononitrate, and some recreational drugs such as "poppers". Taking tadalafil with a nitrate medicine can cause a sudden and serious decrease in blood pressure. Some medicines can cause unwanted or dangerous effects when used with tadalafil. Tell your doctor about all your current medicines, especially riociguat (Adempas). Contact your doctor or seek emergency medical attention if your erection is painful or lasts longer than 4 hours.
A prolonged erection (priapism) can damage the penis. Get medical help at once if you have nausea, chest pain, or dizziness during sex. Stop using tadalafil and cialis 20mg tabs get emergency medical help if you have sudden vision loss. You should not take tadalafil if you are allergic to it. Taking tadalafil with certain other medicines can cause a sudden and serious decrease in blood pressure. Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. Drinking alcohol with this medicine can cause a drop in blood pressure, leading to dizziness or fainting.
Do not start or stop taking tadalafil during pregnancy without your doctor's advice. Having pulmonary arterial hypertension (PAH) during pregnancy may cause heart failure, stroke, cialis plus priligy or other medical problems in both mother and baby. Tell your doctor right away if you become pregnant. It may not be safe to breastfeed while using tadalafil. Tadalafil is not approved for use by anyone younger than 18 years old. Grapefruit and grapefruit juice may interact with tadalafil and lead to unwanted side effects. Avoid the use of grapefruit products while taking this medicine. Get emergency medical help if you have signs of an allergic reaction to tadalafil: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop and get medical help at once if you have nausea, chest pain, or dizziness during sex.