How to take Cialis
If you’re taking the 10mg or 20mg (weekend) dose:
- take one tablet 30-60 minutes before you plan to have sex
- swallow your tablet whole with water
- avoid taking it after a heavy meal because this can slow the drug down
- don’t take more than one Cialis pill in any 24 hour period
- it’s better to wait for 24 hours after the effects of the previous tablet have worn off before taking another one.
You need to be sexually stimulated for Cialis to work.
How long does Cialis last?
Tadalafil stays active in the body for up to 36 hours. This means after you take it, you should be able to get an erection when aroused at any time during this period. So Cialis is a good option for men who plan to have sex multiple times over a day or two.
Slight disclaimer, but there is a window after ejaculation called the ‘refractory period’ where the body needs time to recover, before it can become aroused again. This can vary between a few minutes and a few hours, and it may be difficult to get an erection during this time whether you’ve taken ED medication or not. (Interestingly, there is limited evidence that PDE5 inhibitors like tadalafil can reduce refractory time in men.[1])
How to take Cialis Daily
If you’re taking the 2.5mg or 5mg dose:
- take one tablet daily, at the same time each day
- swallow whole with water
- don’t take more than one Cialis pill in any 24 hour period.
After a couple of days use, the drug should’ve had time to be taken up into your system. By this time it should be active all the time, enabling you to get an erection whenever you’re aroused.
Which Cialis dosage works best?
Which dosage works best depends on the person taking it. A clinician will normally prescribe the lowest dose they know to be effective. So if you’re starting out, this is 10mg if you’re taking Cialis on-demand, or the 2.5mg dose if you’re taking it daily (unless your doctor recommends the lower 2.5 mg daily dose because of other health conditions).
If the lower dose works well, you’ll stay on this dose. A doctor may up your dose if the lower dose works, but not quite well enough to give you a firm erection, or if your erections don’t last long enough.
If you take a higher dose of Cialis (20mg or 5mg) and find that the drug works well but you get mild side effects, like a stuffy nose or a headache, a clinician might reduce your dose to alleviate these.
Sometimes it takes time to find the right dose and the right treatment. Our experts are happy to talk through the different choices.
I took Cialis and it doesn’t work. What now?
It could be that a higher dose will work better, or a different medication.
If Cialis isn’t working well, it can also help to:
- limit your alcohol intake
- eat a light meal when taking it (rather than a heavy one)
- get plenty of physical activity and keep a healthy lifestyle.
Keep in mind too that Cialis can help you get better erections, but it doesn’t create arousal — so it won’t work unless you’re sexually stimulated. (That bit is up to you and your partner.)
But if you’re having problems with Cialis, tell us. We can help you find an alternative.
How we source info.
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. Read more in our editorial policy.