5 WARNINGS AND PRECAUTIONS

However, if your ED comes and goes, you don’t want to take a tadalafil daily dose or aren’t sexually active more than two days a week, on-demand Cialis may be best. It’s unlikely you will be prescribed it when you first start treatment.

Frequently asked questions

It does not mean you’ll have a prolonged erection and if you have an erection for four hours you should seek medical attention. By taking a low dose every day, Cialis daily maintains a constant level of the medication in your system, meaning you’re ready for sex at any time. This is why it’s a good idea to take Cialis daily at the same time every day so that it’s continuously active in your system. As far as Cialis daily vs on-demand, the answer depends on how you need Cialis to work for you. If you want spontaneous sex, Cialis daily is the better option. If you’ve tried a 10mg Cialis dosage, you haven’t seen results you hoped for and you didn’t have side effects, your clinician may consider prescribing the 20mg. You might feel the higher the dose the better, but if you get easy, strong erections on 10mg a higher dose isn’t going to beat that. It will however increase the risk of side effects.

Product	Dosage	Quantity + Bonus	Price
Cialis Generic	60mg	90 + 6 Pills	196.67€ 187.30€	Buy
Cialis Super Active	20mg	90 + 10 Pills	314.14€ 299.18€	Buy
Cialis Professional	20mg	10 Pills	48.29€ 45.99€	Buy
Cialis Generic	10mg	60 + 6 Pills	105.81€ 100.77€	Buy
Cialis Generic	20mg	180 + 10 Pills	254.09€ 241.99€	Buy
Cialis Soft Tabs	20mg	270 + 10 Pills	471.40€ 448.95€	Buy
Cialis Generic	5mg	20 Pills	41.99€ 39.99€	Buy
Cialis Professional	20mg	20 Pills	78.33€ 74.60€	Buy
Cialis Generic	40mg	90 + 6 Pills	171.35€ 163.19€	Buy
Cialis Professional	20mg	60 + 2 Pills	183.83€ 175.08€	Buy
Cialis Generic	20mg	270 + 10 Pills	335.21€ 319.25€	Buy
Cialis Generic	2.5mg	180 + 10 Pills	154.86€ 147.49€	Buy
Cialis Generic	40mg	10 Pills	37.79€ 35.99€	Buy
Cialis Generic	40mg	30 + 4 Pills	74.97€ 71.40€	Buy

Your clinician will evaluate whether the benefits outweigh the risk of side effects.

Vendor Details

Cialis 10mg is the dose most men will initially be prescribed. The majority of men will find that Cialis 10mg works well for them with 71% reporting they could achieve an erection suitable for sex. Your clinician may recommend it if you’re not responding to the standard starting dose of 10mg. In a study of over a thousand men treated with Cialis 20mg, 91% were satisfied with the outcome of their treatment. Cialis 2.5mg is the lowest dosage offered.

Drug information

Whilst 2.5mg may sound low, daily dosing means that tadalafil is always circulating in your system, allowing for cialis 20mg tadalafil lilly spontaneous sex. When compared, 72% of men preferred Cialis Daily over regular Cialis. Cialis 5mg is used in several ways. If you’re taking Cialis Daily at 2.5mg and you’re not seeing the results you would like, your clinician may prescribe you an increased dose of 5mg. Equally, if you’re taking Cialis at the starting dose of 10mg but find you’re suffering too many adverse side effects they may discuss lowering your dose to 5mg. If you’re prescribed 20mg and find either that you’re experiencing too many side effects or are not seeing the results you want, speak with your clinician. They may suggest another type of ED pill or an alternative treatment. As 20mg is the Cialis max dose there is no “Cialis 30mg” or beyond and you should never take more than one tablet in any 24 hour period.

• Can be taken with or without food for convenience
• Avoid high-fat meals to speed up onset
• Grapefruit juice can increase drug levels
• Alcohol in moderation is generally safe
• Excessive alcohol increases risk of side effects
• Caffeine may interact with some users
• Stay hydrated while using medication
• Do not use with recreational drugs like poppers
• Nitrates in some street drugs are dangerous
• Always inform doctor of all substances used
• Drug interactions can be life-threatening
• Keep a list of all medications for doctor

Known as the “standard dose,” Cialis 10mg is the initial dose of Cialis prescribed when starting treatment.

What should I do if I forget a dose?

Cialis 5mg is also used in the treatment of Benign Prostatic Hyperplasia (BPH). So, if you’re over 40 years old and have noticed that you’re getting up more often at night to urinate, your urine stream is weaker than it used to be or you get some dribbling after urination, then Cialis daily will help that too. It’s also interesting to note that some of the traditional treatments for BPH, like tamsulosin or finasteride, can actually cause erection problems. If you’re taking BPH treatment, talk to our experts or your usual doctor about Cialis daily as it could be a suitable treatment. Different doses of Cialis offer you and your clinician flexibility.

Overdose symptoms

If you experience side effects these can be reduced with a lower dose. If you aren’t seeing the results you want, your dose can be increased. It also means that more men are likely to find a medication that helps their ED symptoms but also minimizes the risk of side effects. Cialis 10mg and 20mg will stay active in your system for up to 36 hours. Meaning once taken you have a 36-hour window where Cialis should make getting an erection easier. Tadalafil 10mg is the generic equivalent and will be equally as effective. As it’s the unbranded version, the tadalafil 10mg price will be slightly cheaper. The 10mg dose works for around 71% of men and has a lower risk of side effects than the 20mg dose. If you’re starting treatment with Cialis daily, you’ll normally be prescribed Cialis 2.5mg. This is the lowest daily dose available. The unbranded, generic version is Tadalafil 2.5mg which once again is usually at a lower price point. But your physician can increase or decrease your dose based on your response to the treatment. This is to keep the risk of side effects low — your doctor will aim for the lowest dose possible to get the job done.

Ingredient	Quantity per Pill	Function	Notes
Tadalafil	20 mg	Active pharmaceutical ingredient	Main compound
Microcrystalline Cellulose	50 mg	Filler	Binds ingredients
Magnesium Stearate	2 mg	Lubricant	Improves manufacturing
Lactose Monohydrate	10 mg	Diluents	Contains lactose

(Which is 2.5mg for ‘daily’ use, and 10mg for ‘on-demand’ use.

Condition	Optimal Range	Notes
Temperature	20°C to 25°C	Keep away from heat
Humidity	Below 60%	Protect from moisture
Light	Store in original container, out of light	Protect from light
Children	Keep out of reach	Safety measure

If your ‘on-demand’ dose doesn’t work well enough, your clinician may increase it to 20mg. And similarly, if your daily dose of 2.5mg isn’t working as well as you’d like, it can then be increased to 5mg. If you experience side effects on Cialis, let your doctor or pharmacist know. They’ll suggest either lowering your dose or recommend an alternative ED treatment. To minimize the risk of side effects avoid grapefruit, drinking too much alcohol, and do not take more than one dose of Cialis per day. If you aren’t seeing the results you want on Cialis Daily 2.5mg, and don’t experience side effects, your prescriber may recommend upping your dose to Cialis 5mg daily. It without prescription cialis soft should be equally as effective at treating ED as Cialis. There is no Cialis 40mg or Tadalafil 40mg available in the US. A tadalafil dosage of 40mg is used to treat pulmonary arterial hypertension, but this is under careful medical supervision. Doses higher than 20mg have a higher risk of side effects and can dangerously affect blood pressure.

What are the possible side effects or risks of tadalafil?

If you or someone else has used too much tadalafil, get medical help right away, call 911, or contact a Poison Control center at 800-222-1222. If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and only take the next dose. Do not take double or extra doses. Some tadalafil products are meant to be used only when needed.

Getting Started Is Easy

Take it as your healthcare provider recommends. This survey is being conducted by the WebMD marketing sciences department. Between you and your clinician, finding the right Cialis dosage, on a treatment plan tailored to you, can take time. One of the first questions to consider will be whether you feel Cialis “on-demand” or “for once daily use” will be best for your lifestyle. Cialis Daily is a good option if you’re having sex more than three times a week or if you don’t want the pressure of calculating whether or not sex might be on the cards and when to time your tablet. One such side effect, priapism, is an erection that lasts more than 4 hours and requires immediate medical attention. At your consultation, make sure you give your doctor your full medical history.

• Missing a dose of Cialis 20mg can reduce its effectiveness.
• Do not double doses to catch up.
• Contact your healthcare provider if you miss a dose.

This will help them make the best initial decision about your erectile dysfunction treatment. Once you begin treatment, keep an eye out for any side effects and let your prescriber know if they occur.

• Cialis 20mg may cause side effects like headache or flushing.
• Serious side effects are rare but require medical attention.
• Common side effects usually resolve without treatment.

Whilst it’s important you give your prescribed dose a few tries, it should ultimately offer you the results you want. If this isn’t the case, again, let your clinician know.

5.6 Alpha blockers and Antihypertensives

The daily version contains a tadalafil dose of 2.5mg or 5mg. On-demand or “weekend” Cialis is stronger, with a tadalafil dosage of 10mg or 20mg. You might choose the on-demand Cialis dose if your ED comes and goes or you’re happy to just take it when you need it and don’t want a daily tablet. If the initial dose isn’t right because of too many side effects or you’re not reaching your full potential, don’t worry. Speak with your prescriber — with four doses available, they’ll help you find the one which works for you.

Higher dosages of Cialis

There are four different Cialis dosages: 2.5mg, 5mg, 10mg and 20mg. Which you choose depends on how well you respond to treatment and whether it suits your lifestyle. Different Cialis strengths each have different amounts of the active ingredient: tadalafil. The starting dose is usually 10mg for as-needed use and 2.5mg for daily use. These can be increased to 20mg or 5mg respectively, depending on how you respond to the treatment. Getting the best results when you take Cialis is the end goal. Always follow the instructions in the leaflet or on the pack and any specific guidance given to you by your doctor. If you’re taking Cialis as needed, remember to give it enough time to work. Results aren’t instant, so aim for no less than 30 minutes before sex — longer if possible. Avoiding mixing Cialis with nitrates, such as isosorbide mononitrate or GTN spray. These cause a drop in blood pressure, which can be dangerous and never take double doses or split doses. 2004.The efficacy and safety of tadalafil: an update. Tadalafil administered once daily for lower urinary tract symptoms secondary to benign prostatic hyperplasia: A dose finding study. The Journal of Urology, 180(4), 1228-1234 Coward, Robert M., Carson, Culley C. 2008. Tadalafil in the treatment of erectile dysfunction. A comparison of the efficacy and tolerability of tadalafil 10 mg and 20 mg in Japanese patients with severe erectile dysfunction.

• Store in original packaging to protect from moisture
• Keep in a cool, dry place away from heat
• Do not store in bathroom or near sink
• Avoid freezing or extreme temperatures
• Check for discoloration or damage before use
• Dispose of expired or unused tablets properly
• Use drug take-back programs if available
• Do not share with others, even if symptoms similar
• Keep out of reach of children and pets
• Travel with medication in original labeled container
• Carry a copy of prescription when traveling abroad
• Check local laws if traveling internationally

The journal of sexual medicine, 4(3), pp.745–752. This page was medically reviewed by Dr Alexandra Cristina Cowell, Writer & Clinical Content Reviewer on Sep 03, 2025. Next review due on Sep 03, 2028. When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. We couldn't find what you're looking for. Or, if you're looking for something we don't have yet, you can suggest something. All of our reviews are collected from real patients after their treatment has been delivered. We publish reviews collected through independent platforms including Reviews.io and Trustpilot. Why this page was updated on Sep 19, 2025 Content checked and updated as part of our 3-yearly periodic review, to ensure accuracy and currentness.

Advice Topic	Recommendations	Rationale
Taking the Pill	Follow prescribed dosage and timing	Ensures safety and efficacy
Recognizing Side Effects	Report serious side effects immediately	Prevent complications
Combining with Other Meds	Always inform healthcare provider about current medications	Avoid adverse interactions
Post-use Care	Avoid driving or operating machinery if feeling dizzy	Ensures safety