Cialis Dosages Explained
Medically reviewed by
Dr Simran DeoLast reviewed: 18 Oct 2019
Choosing the right Cialis dose for erectile dysfunction is all about finding what works best for you and your needs. It comes in 4 different strengths, and the best dosage depends on how often you plan to use it and how your body responds to the medication, which will vary for everyone.
Find out how to choose the right strength of Cialis for you and how often you can take it.
What Cialis dosages are available?
You can get Cialis in four different doses in th UK:
- 2.5mg: small white pills with ‘2.5mg’ written on them
- 5mg: small light orange pills with ‘5mg’ written on them
- 10mg: large light orange pills with ‘10mg’ written on them
- 20mg: large dark orange pills with ‘20mg’ written on them
The dose of Cialis refers to how much of the active ingredient ‘tadalafil’ is in them. The lower doses (2.5mg and 5mg) are usually prescribed for ‘daily’ use, while the higher two doses (10mg and 20mg) can be taken as required or ‘on demand’. This means you take them at least 30mins before you plan to have sex, instead of taking them at the same time every day.
5mg is the standard dose for Cialis Daily, and 10mg is the standard dose for on demand Cialis.
The maximum dose of tadalafil for erectile dysfunction in the UK is 20mg, and higher doses are currently only available in the US. Higher doses of Cialis have an increased risk of side effects, because blood pressure is affected and the amount of Cialis in your body can build up over time.
40mg of tadalafil is used in some situations to treat pulmonary arterial hypertension, but only under specialist supervision because of the risks.
"Cialis is available in four dosages. While the lower doses of 2.5mg and 5mg can be taken daily, the 10mg and 20mg doses are to be taken when needed."
About Cialis 10mg
If you have sex on up to three different days a week, and you’ve never tried Cialis before, this is usually the first dose of Cialis that’s recommended. It’s known as the ‘standard dose’:
- Cialis 10mg is taken as you need it (on demand), at least half an hour before sex
- It can last for up to 36 hours
- This dosage works for most people who try it and has a lower risk of side effects than higher strengths
- This dose comes in pack sizes of 4, 8, 12, 16, and 28 tablets from Superdrug Online Doctor
About Cialis 20mg
If you tried Cialis 10mg and didn’t see the desired effect (but also didn’t experience any negative side effects), you can try upping the dose to 20mg.
- Like 10mg Cialis, 20mg Cialis is taken as you need it (on demand), at least half an hour before sex
- It also lasts for the same amount of time, up to 36 hours
- This dose can work for some people who didn’t see enough of an effect from 10mg, but it is also more likely to cause side effects
- This dose also comes in pack sizes of 4, 8, 12, 16, and 28 tablets from Superdrug Online Doctor
About Cialis Daily 2.5mg and 5mg
If you have sex on more than three different days in a week, taking Cialis Daily might be a good idea. This comes in 2 doses like Cialis on demand, but the higher dose of 5mg is the standard one.
- 5mg is taken once a day at the same time
- As long as you take every dose, you should always see the effects
- If 5mg works fine for you but you get side effects, then you can switch to 2.5mg, which works the same way but has a lower risk of side effects
- Both doses come in pack sizes of 28 tablets from Superdrug Online Doctor
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How often can you take a dose of Cialis?
All doses can be taken up to once a day. You should never take more than one Cialis tablet every 24 hours.
Think about switching to Cialis Daily if:
- You find you are taking the higher on-demand doses (10mg or 20mg) on more than three different days in a week.
- You are ‘topping up’ after 24 hours. The on-demand doses (10mg and 20mg) work for up to 36 hours, so if the doses overlap this can lead to higher amounts in the bloodstream which may lead to more side effects.
- You find the effects of Cialis wear off before 24 hours are up and you want to have sex again.
What if my current dose isn’t working?
- If you’re on 2.5mg or 10mg and you haven’t had any problems with side effects, then the dose can be increased to see if that has a better effect. You will need to discuss this with your doctor before making any changes though.
- If you’re on a daily dose of 5mg then a higher on demand dosage might be worth trying, after first discussing with your doctor.
If 20mg of Cialis doesn’t work for you, you may have to try a different medication. Or, you could try combining Cialis with some other treatments like lifestyle changes, counselling, penis pumps, or therapy. You should never combine Cialis with any other erectile dysfunction medication, or take more than the recommended daily dosage.
How do Cialis doses compare with Viagra ones?
Cialis and Viagra have different active ingredients in them that make them work. So, the doses of Cialis and Viagra are not related and you can’t compare the number of mg to figure out which might be more effective (e.g. 20mg of Viagra wouldn’t be the same as 20mg of Cialis).
Sources
- Cialis (2019) RxList Ltd [accessed 1 April 2020]