What is Tadalafil?
Tadalafil is a widely used treatment for erectile dysfunction, benign prostatic hyperplasia, and pulmonary arterial hypertension.
It works by relaxing blood vessels, which improves blood flow and supports better performance during physical or sexual activity.
Many people use tadalafil because it offers lasting effects compared to similar options. It is available in different strengths, including the tadalafil 0.5 mg tablet, with the tadalafil recommended dosage depending on the condition and individual needs.
Most users take it once a day or before anticipated activity, and knowing the best time to take tadalafil can help maximize its benefits.
Common tadalafil side effects include headache, back pain, and indigestion, while rare but serious issues may require immediate medical attention.
Some individuals may experience tadalafil withdrawal symptoms if they stop suddenly after regular use, and long-term users should be aware of possible tadalafil long-term side effects.
Follow your doctor’s advice on the use of tadalafil, considering your specific situation, and avoid exceeding the recommended dosage for safe and effective results.
Indications and Benefits
Tadalafil is a trusted treatment option for several health conditions related to blood flow and muscle relaxation.
It is well known for helping with erectile dysfunction, but also has important uses for other conditions affecting the urinary system and lung function.
In addition to its approved purposes, tadalafil has certain off-label uses that may offer benefits for specific situations under professional guidance.
What Are the Benefits of Tadalafil?
These are the FDA-approved conditions for tadalafil:
- Erectile Dysfunction (ED): Helps achieve and maintain an erection by improving blood flow during sexual stimulation.
- Benign Prostatic Hyperplasia (BPH): Eases urinary symptoms such as weak stream, difficulty starting urination, and frequent urination.
- Combination of ED and BPH: Improves erectile function and reduces urinary symptoms at the same time.
- Pulmonary Arterial Hypertension (PAH): Improves the ability to exercise by lowering blood pressure in the lungs.
In addition to these approved uses, tadalafil may also be prescribed for off-label purposes, which means it is used in ways not officially listed on its FDA label but may still offer benefits under medical supervision.
Tadalafil off-label uses may include:
- Altitude sickness prevention: Especially for lowering the risk of high-altitude pulmonary edema.
- Treatment of sexual dysfunction in men taking antidepressants: Helps address performance issues that certain antidepressants can cause.
Brand Name Options
Tadalafil is available under several well-known brand names as well as generic versions.
Choosing the right brand often depends on individual preference, availability, and how well your body responds.
Which brand of tadalafil is best can vary from person to person, but Cipla, Teva, Mylan, and Accord/Actavis (now part of Accord) are among the most preferred manufacturers worldwide.
Here are some common brand and generic options for tadalafil:
- Adcirca – 20 mg
- Cialis – 2.5 mg, 5 mg, 10 mg, 20 mg
- Apo-Tadalafil – 2.5 mg, 10 mg
- Aura-Tadalafil – 20 mg
- PMS-Tadalafil – 5 mg
- Cipla Tadalafil
- Teva Tadalafil
- Mylan Tadalafil
- Accord/Actavis Tadalafil
How It Works
Tadalafil works by helping blood vessels relax and improving blood flow in certain parts of the body. It belongs to a group of treatments called phosphodiesterase type 5 (PDE5) inhibitors.
PDE5 is an enzyme that can limit blood flow by breaking down a natural chemical in the body called cyclic guanosine monophosphate (cGMP).
By blocking PDE5, tadalafil increases cGMP levels, which allows the smooth muscles in blood vessel walls to relax. This relaxation widens the blood vessels, a process known as vasodilation, making it easier for blood to flow where it is needed.
Dosage
Tadalafil is available in various strengths and is taken orally. The right tadalafil typical dosage depends on the condition being treated, overall health, and how well the body tolerates it.
Following the tadalafil recommended dosage is important for safety and best results. The best time to take tadalafil can also vary depending on whether it is taken daily or as needed.
What Dosage Strengths Does Tadalafil Come In?
- Tadalafil 0.5 mg tablet
- Tadalafil 2.5 mg
- Tadalafil 5 mg
- Tadalafil 10 mg
- Tadalafil 20 mg
Tadalafil Recommended Dosage Chart
| Condition / Use | Tadalafil Typical Dosage | Best Time to Take Tadalafil | Frequency | Notes for Special Populations |
| Erectile Dysfunction (as needed) | 10 mg starting dose (can adjust to 5 mg or 20 mg) | About 30 minutes before the activity | Once daily max | Avoid high-fat meals for a faster effect |
| Erectile Dysfunction (daily) | 2.5 mg daily (can adjust to 5 mg) | Same time each day | Daily | Suitable for frequent use |
| Benign Prostatic Hyperplasia (BPH) | 5 mg daily | Same time each day | Daily | Can be taken with or without food |
| ED + BPH combined treatment | 5 mg daily | Same time each day | Daily | Improves urinary and erectile symptoms |
| Pulmonary Arterial Hypertension (PAH) | 40 mg daily (two 20 mg tablets) | Same time each day | Daily | Do not split doses |
| Renal impairment (mild/moderate) | Start at 20 mg daily | Same time each day | Daily | The doctor may adjust based on tolerance |
| Hepatic impairment (mild/moderate) | Start at 20 mg daily | Same time each day | Daily | Avoid in severe liver disease |
| With ritonavir (HIV treatment) | Start at 20 mg daily | Same time each day | Daily | Increase only if tolerated |
| Children under 18 | Not recommended | — | — | Not studied or approved for use |
Usage Guide
Following the correct tadalafil typical dosage and instructions is important for safety and effectiveness. The tadalafil recommended dosage can vary depending on the condition being treated, and the best time to take tadalafil depends on whether it is taken daily or as needed.
Always follow your doctor’s advice to get the best results and reduce the risk of tadalafil side effects.
How do you take Tadalafil?
- Take tadalafil exactly as your healthcare provider tells you.
- Take your dose at the same time every day to keep steady levels in your body.
- For daily use, swallow the tablet whole with water, with or without food.
- For on-demand use, take it before anticipated sexual activity, usually at least 30 minutes in advance.
- Do not split or crush the tablet.
- Do not take more than one dose per day.
- Avoid drinking more than four alcoholic drinks in a short time, as this may lower blood pressure and cause dizziness or fainting.
- If you miss a daily dose, take it as soon as you remember unless it is close to your next dose.
- If you take too much tadalafil, seek medical help immediately.
Side Effects
Tadalafil is generally well tolerated, but like any medication, it may cause unwanted effects in some individuals. Being aware of possible tadalafil side effects can help you monitor your health and know when to seek medical attention.
Here are some of the common and severe side effects reported by patients:
Common Side Effects:
- Headache
- Muscle pain
- Flushing (feeling hot or red in the face)
- Nausea
- Pain in the arms, legs, or back
- Upset stomach
- Stuffy or congested nose
Severe Side Effects:
- Sudden decrease or loss of vision in one or both eyes (NAION)
- Sudden decrease or loss of hearing, sometimes with ringing in the ears and dizziness
- Erection lasting more than 4 hours (priapism)
Long-term use may also have potential risks. If you experience unusual symptoms over time, discuss possible long-term side effects of tadalafil with your healthcare provider.
Missed Dose
If you miss a dose of tadalafil, take it as soon as you remember, unless it is almost time for your next scheduled dose. In that case, skip the missed dose and continue with your regular dosing schedule.
Do not take extra medication to make up for a missed dose, as this can increase the risk of side effects. If you are unsure what to do, consult your doctor or pharmacist for guidance.
Overdose
Taking more than the recommended dosage of tadalafil can be dangerous and may lead to serious health complications.
An overdose of tadalafil may cause a sudden drop in blood pressure, chest pain, irregular heartbeat, prolonged and painful erections (priapism), vision or hearing loss, and difficulty breathing.
Warnings
- Tadalafil can lower blood pressure and may cause dizziness or lightheadedness, which can lead to fainting. People with heart conditions should speak to a healthcare provider before using it.
- Tadalafil can cause symptomatic low blood pressure. This is more likely if you take nitrates or certain medications for high blood pressure. Combining these can be dangerous.
- A prolonged erection lasting more than four hours can occur. This is called priapism and needs immediate medical attention to avoid permanent damage.
- Rare cases of sudden loss of vision have been reported. This may be linked to a condition called non-arteritic anterior ischemic optic neuropathy.
- Sudden hearing loss has been reported in rare cases. It may be accompanied by ringing in the ears or dizziness. Seek medical help if this occurs.
- Allergic reactions can happen. Symptoms include swelling of the face, lips, or tongue, itching, or difficulty breathing. This needs urgent medical care.
- People with liver or kidney problems may need a different dose. Tadalafil is not recommended for anyone under 18 years old.
- Tadalafil should be used with caution in people with blood disorders, certain eye conditions, or anatomical changes to the penis.
- Tell your doctor if you have a history of heart attack, stroke, chest pain, irregular blood pressure, stomach ulcers, or bleeding disorders before taking tadalafil.
Boxed Warning and Precautions for Tadalafil
| Tadalafil can cause a sudden and serious drop in blood pressure, especially when used with nitrates or certain heart medications. This drop in blood pressure can lead to dizziness, fainting, heart attack, or stroke. People with certain heart problems, very low or uncontrolled blood pressure, or serious liver or kidney issues should not take tadalafil unless advised by a doctor who has carefully evaluated the risks. Rare but serious side effects such as vision loss, hearing loss, and prolonged painful erections can occur. Immediate medical attention is needed if any of these happen. |
Contraindications
Tadalafil should not be used by anyone who is allergic to tadalafil or any of its ingredients.
People who are taking any form of nitrate medication, whether regularly or occasionally, should avoid tadalafil because it can cause a dangerous drop in blood pressure. It is also not safe to use tadalafil with medications called guanylate cyclase stimulators, such as riociguat.
People with pulmonary veno-occlusive disease should not take tadalafil. Those with certain retinal disorders or hereditary degenerative eye diseases should avoid it unless approved by a doctor.
Tadalafil should not be taken daily for erectile dysfunction or benign prostatic hyperplasia in patients with severe kidney impairment where creatinine clearance is less than 30 ml per minute.
Interactions
- Nitrates such as nitroglycerin
- Alpha blockers such as terazosin, doxazosin, and tamsulosin
- Antifungal medications such as ketoconazole or itraconazole
- Antibiotics such as clarithromycin or erythromycin
- HIV protease inhibitors such as ritonavir or saquinavir
- Other medications for erectile dysfunction, such as sildenafil or vardenafil
- Blood pressure medications, including amlodipine, enalapril, and metoprolol
- Angiotensin II receptor blockers such as losartan
- Diuretics such as bendroflumethiazide
- Large amounts of alcohol
- Potent CYP3A enzyme inducers such as rifampin
- Potent CYP3A enzyme inhibitors such as ritonavir, ketoconazole, and itraconazole
Storage Information
Store tadalafil at room temperature between 20 and 25 degrees Celsius.
Keep the medication in its original packaging to protect it from moisture, heat, and light. Store it in a dry, stable environment to help maintain its effectiveness.
Do not store tadalafil in the bathroom or freezer. Always keep it out of reach of children and pets.
Check the expiration date regularly and do not use the medication if it has expired. If you have unused tadalafil, consult your doctor for advice on proper disposal.
Alternatives
If tadalafil is not suitable for you or if you are looking for other treatment options, several prescription medications are available to manage erectile dysfunction.
Some contain tadalafil, while others use different active ingredients that work in similar ways but may have different onset times and durations of effect.
Tadalafil-based brands’ alternatives
- Cialis (tadalafil)
- Adcirca (tadalafil)
- Tadacip (tadalafil)
- Tadalis (tadalafil)
- Forzest (tadalafil)
- Megalis (tadalafil)
- Tadora (tadalafil)
- Tagra (tadalafil)
Sildenafil-based alternatives
- Viagra (sildenafil)
Vardenafil-based alternatives
- Levitra (vardenafil)
- Staxyn (vardenafil)
Avanafil-based alternatives
- Stendra (avanafil)
Alprostadil-based alternatives
- Caverject (alprostadil)
- Edex (alprostadil)
- Muse (alprostadil)
Cost & Coupons
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Frequently Asked Questions
Disclaimer
Pharma Giant provides medical information to help you better understand medications and medical conditions.This content is for informational use only and does not replace advice from a licensed medical practitioner. Consult your doctor or pharmacist before starting or changing any medication. All our partners follow strict safety standards set by their country’s health authorities to make sure you receive safe and high-quality medications.
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