What is a Patient Information Leaflet and why is it useful?

The Patient Information Leaflet (PIL) is the leaflet included in the pack with a medicine. It is written for patients and gives information about taking or using a medicine. It is possible that the leaflet in your medicine pack may differ from this version because it may have been updated since your medicine was packaged.

Below is a text only representation of the Patient Information Leaflet. The original leaflet can be viewed using the link above.

The text only version may be available in large print, Braille or audio CD. For further information call emc accessibility on 0800 198 5000. The product code(s) for this leaflet is: PL 00166/0199.

Flomaxtra XL, 400 micrograms, film-coated prolonged release tablet

Package leaflet: Information for the user

Flomaxtra® XL 400 microgram film-coated, prolonged-release tablet

tamsulosin hydrochloride

Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.

  • Keep this leaflet. You may need to read it again.
  • If you have any further questions, ask your doctor, pharmacist or nurse.
  • This medicine has been prescribed for you. Do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
  • If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. See section 4.

What is in this leaflet:

1. What Flomaxtra XL is and what it is used for
2. What you need to know before you use Flomaxtra XL
3. How to use Flomaxtra XL
4. Possible side effects
5. How to store Flomaxtra XL
6. Contents of the pack and other information

1. What Flomaxtra XL is and what it is used for

What is Flomaxtra XL

Flomaxtra XL contains the active substance tamsulosin hydrochloride. It acts by relaxing the muscles in the prostate and urethra (the tube that carries urine to the outside), and lets urine pass more readily through the urethra and aids urination.

In the prostate gland, bladder and urethra there are specialised cells containing alpha1A-receptors that cause the muscles in the urethra to tighten. Flomaxtra XL is an alpha1A-adrenoceptor blocker, which reduces the action of these specialised cells and relaxes the muscles making it easier to pass water.

What Flomaxtra XL is used for

Flomaxtra XL is used to treat the symptoms associated with benign prostatic hyperplasia (BPH) which is enlargement of the prostate gland. These symptoms include difficulty in starting to pass water, frequent trips to the toilet to pass water, a feeling of not completely emptying the bladder and having to get up several times in the night to pass water.

2. What you need to know before you use Flomaxtra XL

Do not use Flomaxtra XL if you

  • are allergic to tamsulosin or any of the other ingredients of Flomaxtra XL (listed in section 6)
  • have a severe liver condition
  • have ever fainted or felt dizzy when suddenly sitting or standing up. Dizziness can sometimes occur when taking Flomaxtra XL, particularly if you are also taking other alpha1-blockers. If you do feel weak or dizzy make sure you sit or lie down straight away until the symptoms have disappeared.

Warnings and precautions

Talk to your doctor before using Flomaxtra XL

  • If you have kidney problems
  • If you are undergoing or have been scheduled for eye surgery because of cloudiness of the lens (cataract) or increased pressure in the eye (glaucoma).

Please inform your eye specialist that you have previously used, are using or are planning to use tamsulosin hydrochloride. The specialist can then take appropriate precautions with respect to medication and surgical techniques to be used. Ask your doctor whether or not you should postpone or temporarily stop taking this medicine when undergoing eye surgery because of a cloudy lens (cataract) or increased pressure in the eye (glaucoma).

Children and adolescents

Do not give this medicine to children or adolescents under 18 years because it does not work in this population.

Other medicines and Flomaxtra XL

Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines. This is because Flomaxtra XL can affect the way that some other medicines work and some other medicines can affect the way that Flomaxtra XL works.

In particular tell your doctor or pharmacist if you are taking:

  • Medicines to lower your blood pressure such as verapamil and diltiazem
  • Medicines to treat HIV such as ritonavir or indinavir.
  • Medicines to treat a fungal infection such as ketaconazole or itraconazole
  • Other alpha blockers such as doxazosin, indoramin, prazosin or alfuzosin
  • Erythromycin, an antibiotic used to treat infections

Please inform your doctor that you are on Flomaxtra XL before any operation or dental procedure as there is a potential that your medicine may interfere with the effects of the anaesthetic.

Pregnancy, breast-feeding and fertility

Flomaxtra XL is not indicated for use in women.

In men, abnormal ejaculation has been reported (ejaculation disorder). This means that the semen does not leave the body via the urethra, but instead goes into the bladder (retrograde ejaculation) or the ejaculation volume is reduced or absent (ejaculation failure). This phenomenon is harmless.

Driving and using machines

There is no information available on whether Flomaxtra XL affects the ability to drive or to operate machinery or equipment. However, it is known that Flomaxtra XL may cause drowsiness, blurred vision, dizziness and fainting. If you suffer from these do not drive or operate machinery.

3. How to take Flomaxtra XL

Always take this medicine exactly as your doctor, pharmacist or nurse has told you. Check with your doctor, pharmacist or nurse if you are not sure. The recommended dose for adults and the elderly is one tablet each day. It can be taken with or without food. Swallow the tablet whole. Do not crunch or chew. Your doctor may want to examine you from time to time whilst you are taking this medicine.

If you take more Flomaxtra XL than you should

If you have taken too many tablets, contact your doctor immediately or go to the nearest hospital casualty department taking any remaining medication and this patient information leaflet with you.

If you forget to take Flomaxtra XL

You may take your tablet later the same day if you have forgotten to take it earlier. If you have missed a day, just continue to take your daily tablet from the next day. Do not take a double dose to make up for a missed dose.

If you have any further questions on the use of this product, ask your doctor, pharmacist or nurse.

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them.

Stop taking this medicine and consult your doctor immediately if any of the following occur – you may need medical treatment.

Rare (affects less than 1 in 1000 people)

  • Swelling of the face, throat or tongue with breathing problems linked to allergy

Very rare (affects less than 1 in 10,000 people)

  • Persistent painful erection usually unrelated to sexual activity.
  • Rash, inflammation and blistering of the skin and/or mucous membranes of the lips, eyes, mouth, nasal passages or genitals (Stevens-Johnson syndrome).
  • Abnormal irregular heart rhythm (atrial fibrillation, arrhythmia, tachycardia), difficult breathing (dyspnoea).

The following side effects have also been reported:

Common (affects less than 1 in 10 people)

  • dizziness
  • abnormal ejaculation (ejaculation disorder). This means that semen does not leave the body via the urethra, but instead goes into the bladder (retrograde ejaculation) or the ejaculation volume is reduced or absent (ejaculation failure). This phenomenon is harmless.

Uncommon (affects less than 1 in 100 people)

  • weakness
  • headache
  • runny or blocked nose
  • dizziness as you sit or stand up
  • palpitations (rapid or irregular heart beat)
  • gastro-intestinal symptoms such as nausea and vomiting (feeling or being sick), diarrhoea or constipation
  • hypersensitivity reactions such as rash, itching, redness, local swelling and breathing problems

Rare (affects less than 1 in 1000 people)

  • fainting

Not known (frequency cannot be estimated from the available data):

  • blurred vision
  • impaired vision
  • nose bleeds (epistaxis)
  • serious skin rashes (erythema multiform, dermatitis exfoliative)
  • dry mouth

As with other medicines of this type, drowsiness, blurred vision or swelling of the hands and feet can occur.

Reporting of side effects

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.

By reporting side effects you can help provide more information on the safety of this medicine.

5. How to store Flomaxtra XL

Keep this medicine out of the sight and reach of children.

Do not use this medicine after the expiry date which is stated on the carton (EXP). The expiry date refers to the last day of that month.

Store below 30°C in the original package.

Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help to protect the environment.

6. Contents of the pack and other information

What Flomaxtra XL contains

The active substance is tamsulosin hydrochloride. Each prolonged-release tablet contains 400 micrograms tamsulosin hydrochloride which is equivalent to 367 micrograms of tamsulosin.

The other ingredients are macrogol, magnesium stearate, butylhydroxytoluene, hypromellose and yellow iron oxide E172.

What Flomaxtra XL looks like and contents of the pack

Flomaxtra XL tablets are round, yellow tablets with `04´ imprinted on them.

The tablets are supplied in blister packs of 30.

Marketing Authorisation Holder and Manufacturer

Marketing authorisation holder:

Astellas Pharma Ltd.
68 Chertsey road
GU21 5BJ


Astellas Pharma Europe B.V.
Sylviusweg 62
2333 BE Leiden
The Netherlands

This leaflet was last revised in November 2019.