It is essential to adhere closely to the instructions provided by your healthcare professional, whether that be a doctor or pharmacist, when taking this medication.
In cases where you possess a private prescription for tadalafil, it is crucial to thoroughly examine the accompanying documentation that comes with your medication. The guidelines regarding dosage and strength may differ based on individual circumstances.
Dosage and strength
Tadalafil is available in a variety of strengths, specifically as 2.5mg, 5mg, 10mg, and 20mg tablets.
Dose for erectile dysfunction
Typically, the prescribed dose of tadalafil for the treatment of erectile dysfunction is 10mg, which should be taken when needed. It is important not to exceed a maximum of one tablet within a 24-hour period.
Your healthcare provider may adjust your dosage based on your response to the medication and how frequently you choose to take it.
The therapeutic effects of tadalafil can persist for more than 24 hours; hence, it is not advisable to take the 10mg or 20mg tablets on a daily basis.
For optimal efficacy, it is necessary to be sexually stimulated for the medication to achieve its intended effect.
Dose for benign prostate enlargement
For individuals with benign prostate enlargement, tadalafil is available in lower strengths of 2.5mg or 5mg tablets. The standard dosage is 5mg, which is typically taken once each day.
In cases where a patient is receiving treatment for both benign prostate enlargement and erectile dysfunction, the recommended dose remains at 5mg.
Dose for pulmonary hypertension
For managing pulmonary hypertension, tadalafil is provided in the strength of 20mg tablets.
The usual prescribed dose for this condition is 40mg, which corresponds to taking two of the 20mg tablets on a daily basis.
If you have existing kidney or liver conditions, your healthcare professional may consider lowering the initial dosage to either 10mg or 20mg.
It is advisable to swallow your tablets whole, accompanied by a drink such as water or juice (not grapefruit juice).
For erectile dysfunction treatment, you should take one tablet a minimum of 30 minutes prior to engaging in sexual activity.
When taking tadalafil for the purpose of prostate enlargement, you may choose to take your medication in the morning or evening; however, establishing a routine to take it at the same time daily may enhance its effectiveness.
Note that tadalafil tablets prescribed for pulmonary hypertension are relatively large and may pose challenges for some individuals when attempting to swallow them.
If you forget to take it
In the event that you miss a dose:
- For benign prostate enlargement – Take the medication as soon as you recall and continue with your usual schedule thereafter.
- For pulmonary hypertension – If you remember within an 8-hour window, take the missed dose. If the 8 hours have passed, skip taking that dose and return to your normal dosing schedule.
Never attempt to take two doses simultaneously, nor should you take an extra dose to compensate for one that was missed.
For individuals who frequently forget their doses, setting an alarm or reminder may prove beneficial. Consulting with a pharmacist for additional strategies to bolster your medication adherence could also be advantageous.
If you take too much
Exceeding the prescribed amount of tadalafil may lead to various adverse effects, which can include:
- A persistent headache
- Feelings of dizziness
- Symptoms of indigestion
- Nasal congestion or stuffy nose
- Alterations in your vision (such as experiencing blurred vision)
Urgent advice: It is crucial to contact 111 for immediate assistance if:
- You have ingested more tadalafil than what was prescribed to you
Visit 111.nhs.uk or call 111 for help
Information:
In cases where you need to go to the Accident & Emergency department, refrain from driving yourself. It is advisable to arrange for someone else to drive you or to call 999 for ambulance assistance.
When visiting A&E, bring the tadalafil packaging, any remaining tablets, and a list of any other medications you are currently taking.