Patient info Search Menu

Uvadex 20 micrograms / ml solution for Blood Fraction Modification – patient leaflet, side effects, dosage

Updated:
Key facts
Status:
Prescription only (POM)
Medicine strength:
20 micrograms / ml
Contains active substance:

Patient leaflet - Uvadex 20 micrograms / ml solution for Blood Fraction Modification

What UVADEX is and what it is used for

The name of this medicine is UVADEX 20 micrograms/ml Solution for Blood Fraction Modification.

Methoxsalen is a product that alters the response of the body to light which becomes active when it is exposed to UV radiation.

Cutaneous T-cell lymphoma (CTCL) is a blood disorder causing abnormal growths affecting the skin. UVADEX is used in combination with the THERAKOSTM CELLEXTM Photopheresis System to alleviate the skin symptoms of CTCL, when other treatments have not been effective.

The THERAKOS CELLEX photopheresis system provides the UV light necessary to activate methoxsalen which then destroys diseased white blood cells.

2.

What you need to know before you are given UVADEX

Do not use UVADEX:

  • If you have had an allergic reaction to methoxsalen,

    another psoralen compound, or any of the other ingredients.

  • If you have any disease which involves sensitivity to

    light such as porphyria, systemic lupus erythematosus or albinism (a condition where the pigment in your skin is reduced).

  • If your spleen has been removed.
  • If you have a blood clotting disorder or an increased

    white blood cell count (greater than 25,000 per mm3).

  • If you are pregnant or breast feeding.
  • If you are sexually active and do not use contraceptive

    precautions. If you are a sexually active man or woman, you must use contraceptive precautions both during and after treatment as methoxsalen may harm a baby which is conceived during or after treatment.

  • If you have a condition which makes you unable to

    tolerate removal of large quantities of blood, such as heart disease or severe anaemia.

  • If you have had the lens removed from either of

    your eyes.

Warnings and precautions

Talk to your doctor before you are treated with UVADEX:

•

If you have EPILEPSY and are being treated with

phenytoin (this may cause UVADEX treatment to be ineffective).

•

If you have SKIN CANCER (melanoma, basal cell or

squamous cell cancer).

•

If you have LIVER or KIDNEY problems.

•

If you are taking tolbutamide for DIABETES (this may

cause increased photosensitivity).

•

If you have sunbathed recently before treatment.

•

If you are taking any other medicine which causes

sensitivity to light, including some antibiotics (e.g. ciprofloxacin, doxycycline and nalidixic acid, some diuretics (water tablets), some medicines used for treating diabetes (e.g. chlorpropamide), some medicines used to treat mental health problems (e.g. trifluoperazine and haloperidol) and some medicines used to treat skin conditions (e.g. isotretinoin).

•

There is any possibility of you becoming PREGNANT

(See previous section).

Children

UVADEX is not for use in children as there is no sufficient experience available for this age group.

Other medicines and UVADEX

Make sure that the doctor treating you knows about any other medicines you are taking, including any such as paracetamol which you may have bought for yourself.

UVADEX with food and drink

No studies have been done evaluating the effect of food and drink. Since UVADEX is administered as part of a hospital procedure, your specialist doctor will decide whether you may eat or drink during a procedure.

Pregnancy, Breast Feeding and Fertility

If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor for advice before taking this medicine. You should not be given UVADEX if you are pregnant or breast feeding.

If you are sexually active and of childbearing age, you must use appropriate methods of contraception during UVADEX treatment because the active substance, methoxsalen, may harm a child conceived during treatment with UVADEX.

Driving and using machines

You should not drive or operate machinery immediately following treatment.

UVADEX contains small amounts of ethanol.

This medicine contains 217 mg of alcohol (ethanol) in each 5.6 ml dose which is equivalent to 3.1 mg/kg per 5.6 ml dose. The amount in one 5.6 ml dose of this medicine is equivalent to less than 6 ml beer or 3 ml wine.

The small amount of alcohol in this medicine will not have any noticeable effects.

UVADEX contains small amounts of sodium.

This medicine contains less than 1 mmol sodium (23 mg) per dosage unit, that is to say essentially ‘sodium-free’.

3. How to use UVADEX

This medicine is always administered by a specialist doctor who can explain exactly what is happening. The doctor will decide how many treatment sessions you need. Most patients have treatment on two successive days once a month for six months. After four months this may be increased to two successive days twice a month if the doctor thinks it is necessary.

Method of administration

The medicine is administered as follows:

A professional specifically trained in the use of photopheresis will place a needle in your arm so that blood can flow into a specially designed instrument (the THERAKOS CELLEX Photopheresis System) and be separated into red blood cells, white blood cells and plasma. The red blood cells and most of the plasma are simply transfused back into your circulation during the procedure. The white blood cells and the rest of the plasma are mixed with a calculated dose of UVADEX, exposed to UV light in the instrument, and then returned to you.

Duration of treatment

The procedure takes three to four hours from the time the needle is inserted until all the components of your blood have been returned to you.

You should not have more than 20 photopheresis sessions in 6 months.

During administration of your treatment, and for 24 hours afterwards, you must wear special wrap-around UVA-blocking sunglasses all of the time to avoid the light damaging your eyes by causing cataracts to form.

After treatment

After receiving your treatment you should avoid sunlight for at least 24 hours because it may damage your skin by causing burning or, in the long term, premature ageing. If you must go outside you should cover your skin, use a strong sun-blocking agent and wear sunglasses (see above).

If you are given more UVADEX than you should

This is very unlikely. However, were you to be given too much you may need to remain in a darkened room for 24 hours or longer as part of your treatment.

4. Possible side effects

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

The following side effects have been reported:

Common (may affect up to 1 in 10 people):

-

Low blood pressure,

-

Nausea (feeling sick) and vomiting (being sick),

-

Infections,

-

Transient fever (may occur 6 to 8 hours after treatment),

-

Damage to veins (as a result of repeated insertion of

needle to the veins),

-

Altered taste.

Uncommon:

-

Sensitivity to sunlight.

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

-

Allergic reaction.

Reporting of side effects

If you get any side effects, talk to your doctor or 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 Website: 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 UVADEX?

UVADEX will be stored in the hospital pharmacy. It should not be stored above 25ºC.

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. The expiry date refers to the last day of that month

6. Contents of the pack and other information

What UVADEX contains?

-

The active substance is methoxsalen.

-

One vial of 10 ml contains 200 micrograms (µg)

methoxalen. One millilitre contains 20 micrograms of methoxsalen. The other ingredients are Propylene Glycol, Ethanol 95%, Glacial Acetic Acid, Sodium Acetate Trihydrate, Sodium Hydroxide, Sodium Chloride And Water For Injections.

What UVADEX looks like and contents of the pack

Clear colourless solution.

10 ml amber glass vial with a rubber stopper.

Marketing Authorisation Holder and Manufacturer

Marketing Authorisation Holder: THERAKOS (UK) Limited, 3 Lotus Park, The Causeway, Staines-upon-Thames, Surrey TW18 3AG, United Kingdom.

Manufacturer: ANDERSONBRECON (UK) LIMITED, Units 2-7, Wye Valley Business Park, Brecon Road, Hay-on-Wye, Hereford HR3 5PG, United Kingdom.

Date of preparation

This leaflet was last revised in February 2026.

796117

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 42956/0001

Last revision stated in the text: February 2026 · MHRA data as of 13 October 2026

What the sections and the side effect frequencies mean: How to read a patient leaflet

Found a mistake? Tell us on the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Facts about Uvadex 20 micrograms / ml solution for Blood Fraction Modification

What these facts mean

Prescription needed?? Yes, prescription-only medicine (POM)
Active substance? Methoxsalen
Strength? 20 micrograms / ml
Pharmaceutical form? Solution for blood fraction modification
Clear, colourless to pale yellow solution.
How is it taken? Extracorporeal
Excipients? Ethanol 95%, Propylene Glycol, Glacial Acetic Acid, Sodium Acetate Trihydrate, Sodium Chloride, Sodium Hydroxide, Water for Injections
Pack sizes 12 vial
Is it available?? Listed as available (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Shelf life? 3 years
Storage Do not store above 25°C
Drug group (ATC)? Antineoplastic and Immunomodulating Agents
Marketing authorisation? PL 42956/0001 (first authorised 18 April 2011)
Marketing authorisation holder? THERAKOS (UK) Limited, 3 Lotus Park, The Causeway, Staines-upon-Thames, Surrey TW18 3AG, United Kingdom.
Codes? GTIN 5060552586136

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 11.0.0 of 2 November 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.