PACKAGE LEAFLET: INFORMATION FOR THE USER
Gepex 25 mg film-coated tablets EFG
Exemestane
Exemestane belongs to a group of medicines called aromatase inhibitors. These medicines interfere with aromatase, necessary for producing female sex hormones (estrogens), especially in postmenopausal women. The reduction of estrogen levels in the body is a form of treatment for hormone-dependent breast cancer.
Exemestane is used to treat hormone-dependent breast cancer in early stages in postmenopausal women after they have completed 2-3 years of treatment with the medicine tamoxifen.
Exemestane is used to treat advanced hormone-dependent breast cancer in postmenopausal women when other hormonal treatment has not been effective enough.
Do not take Gepex:
Warnings and precautions
Other medicines and Gepex
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines, including those obtained without a prescription.
Gepex must not be administered at the same time as hormone replacement therapy (HRT).
Other medicines should be used with caution in combination with Exemestane. Let your doctor know if you are taking rifampicin (an antibiotic), carbamazepine, or phenytoin (used for epilepsy). You should also inform your doctor if you are taking the herbal medicine St. John's Wort (Hypericum perforatum) or other preparations that contain it.
Pregnancy and breastfeeding
Consult your doctor or pharmacist before using any medicine.
You must not use Exemestane if you are pregnant or think you may be pregnant.
You must not use Exemestane if you are breastfeeding.
Talk to your doctor about birth control measures if there is any chance you may become pregnant.
Driving and using machines:
If you feel dizzy, drowsy, or tired while taking Exemestane, do not drive or operate machinery.
Gepex contains sucrose
This medicine contains sucrose. If your doctor has told you that you have an intolerance to certain sugars, consult them before taking this medicine.
Follow exactly the administration instructions of this medicine given by your doctor or pharmacist. If in doubt, consult your doctor or pharmacist again.
The recommended dose is one 25 mg tablet per day.
Gepex tablets should be taken orally after a meal, approximately at the same time every day. Your doctor will tell you how to take Gepex and for how long.
If you need to go to the hospital while taking Gepex, inform the medical staff what medication you are taking.
Use in children
Gepex is not suitable for use in children.
If you take more Gepex 25 mg film-coated tablets than you should
If you have taken more Exemestane than you should, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone 91562 04 20, indicating the product and the amount administered. Bring this leaflet with you so that the hospital can easily identify the medicine you have taken.
If you forget to take Gepex 25 mg film-coated tablets
Take another dose as soon as you remember. If it is near the time of the next dose, take it at the usual time.
Do not take a double dose to make up for forgotten doses.
If you stop taking Gepex 25 mg film-coated tablets
Do not stop taking the tablets even if you feel well, unless your doctor tells you to.
If you have any further questions on the use of this medicine, ask your doctor, pharmacist, or nurse.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
In general, Gepex is well tolerated, and the following side effects observed in patients treated with Gepex are mainly mild or moderate. Most side effects are associated with the reduction of estrogens (such as hot flashes).
Very common(may affect more than 1 in 10 patients):
Common(may affect up to 1 in 10 patients):
Uncommon(may affect up to 1 in 100 patients):
Rare(may affect up to 1 in 1,000 patients):
Frequency not known(cannot be estimated from the available data):
Hypersensitivity, liver inflammation (hepatitis), and inflammation of the liver's bile ducts that cause yellowing of the skin (cholestatic hepatitis) may occur. Symptoms include feeling unwell, nausea, jaundice (yellow color of the skin and eyes), itching, pain in the right side of the abdomen, and loss of appetite. Contact your doctor as soon as possible if you think you have any of these symptoms.
If you have had a blood test, you may have seen that there have been changes in liver function. There may be changes in the number of certain blood cells (lymphocytes) and platelets circulating in the blood, especially in patients with pre-existing lymphopenia (reduced lymphocytes in the blood).
Reporting of side effects:
If you experience side effects, consult your doctor or pharmacist, even if they are not listed in this leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: www.notificaRAM.es. By reporting side effects, you can help provide more information on the safety of this medicine.
Keep out of sight and reach of children
Do not store above 30°C.
Do not use Gepex after the expiry date stated on the pack. The expiry date is the last day of the month stated.
Medicines should not be disposed of via wastewater or household waste. Return any unused medicine to your pharmacist. Ask your pharmacist how to dispose of medicines no longer required. This will help protect the environment.
Composition of Gepex 25 mg
The active substance is Exemestane.
Each tablet contains 25 mg of Exemestane.
The other ingredients are:
Core of the tablet: microcrystalline cellulose, crospovidone, polysorbate, acetone, mannitol, anhydrous colloidal silica, magnesium stearate.
The sugar coating contains sucrose, acacia gum, purified talc, titanium dioxide (E-171), purified water, Opaglos, isopropyl alcohol.
Appearance of Gepex and contents of the pack
White, biconvex, sugar-coated tablet.
Gepex 25 mg: White, biconvex, sugar-coated tablets, each pack contains 30 or 100 tablets.
Marketing authorisation holder
GP-Pharm, S.A.
Polígono Industrial Els Vinyets – Els Fogars, sector 2
Carretera Comarcal C-244, Km 22,
08777 – Sant Quintí de Mediona (Barcelona) SPAIN
Manufacturer
Tecnimede-Sociedade Técnico-Medicinal, S.A.
Quinta da Cerca, Caixaria, Dois Portos
2565-187 Portugal
Date of last revision of this leaflet: July 2021
Other sources of information
Detailed and updated information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.es/.
The average price of GEPEX 25 mg FILM-COATED TABLETS in October, 2025 is around 96.66 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.