Package Leaflet: Information for the Patient
Silodosin Krka 4 mg Hard Capsules EFG
Silodosin Krka 8 mg Hard Capsules EFG
Silodosin
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack:
What is silodosin
Silodosin belongs to a group of medicines called alpha-1A adrenergic receptor blockers.
Silodosin is selective for receptors located in the prostate, bladder, and urethra. By blocking these receptors, it causes relaxation of the smooth muscle of these tissues. This makes it easier for you to urinate and alleviates your symptoms.
What is silodosin used for
Silodosin is used in adult men to treat urinary symptoms associated with benign prostatic hyperplasia (BPH), such as:
Do not take silodosin
Warnings and precautions
Consult your doctor or pharmacist before starting to take this medicine:
When taking silodosin, dizziness and, occasionally, fainting may occur when standing up, especially when starting treatment or if you are taking other medicines that lower blood pressure. If this happens, sit or lie down immediately until the symptoms disappear and inform your doctor as soon as possible (see also the section "Driving and using machines").
If your kidney problems are moderate, your doctor will start treatment with silodosin with caution and possibly with a lower dose (see section 3 "Dosage"). If your kidney problems are severe, you should not take this medicine.
Children and adolescents
Do not give this medicine to children and adolescents under 18 years of age, as there are no relevant indications for this age group.
Other medicines and silodosin
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines.
Tell your doctor in particular if you are taking:
Pregnancy, breastfeeding, and fertility
Pregnancy and breastfeeding
Since silodosin is used to treat benign prostatic hyperplasia in men, it is not for use in women.
Fertility
Silodosin may reduce the amount of semen, which may temporarily affect male fertility.
Driving and using machines
Do not drive or operate machines if you feel faint, dizzy, or sleepy, or
have blurred vision.
Silodosin Krka contains sodium.
This medicine contains less than 23 mg of sodium (1 mmol) per capsule; this is essentially "sodium-free".
Follow exactly the instructions of administration of this medicine indicated by your doctor or pharmacist. If in doubt, consult your doctor or pharmacist again.
The recommended dose is one 8 mg silodosin capsule per day by oral administration.
Take the capsule always with food, preferably at the same time each day. Do not break or chew the capsule; swallow it whole, preferably with a glass of water.
Patient with kidney problems
If you have moderate kidney problems, your doctor may prescribe a different dose. For this purpose, the 4 mg silodosin capsule presentation is available.
If you take more Silodosin Krka than you should
In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone: 91 562 04 20, indicating the medicine and the amount ingested. If you feel dizzy or weak, inform your doctor immediately.
If you forget to take Silodosin Krka
You can take the capsule later the same day if you forget to take it before. If it is almost time for the next dose, do not take the missed dose. Do not take a double dose to make up for the missed capsule.
If you stop taking Silodosin Krka
If you stop treatment, your symptoms may reappear.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Get in touch with your doctor immediately if you experience any of the following allergic reactions, as their consequences could be serious: swelling of the face or throat, difficulty breathing, feeling of fainting, itching of the skin, or hives.
The most common side effect is a reduction in the amount of semen expelled during sexual intercourse. This effect disappears after stopping treatment with silodosin. Inform your doctor if you are planning to have children.
Dizziness, including dizziness when standing up, and, occasionally, fainting may occur.
If you feel weak or dizzy, sit or lie down immediately until the symptoms disappear. If you experience dizziness when standing up or fainting, inform your doctor as soon as possible.
Silodosin may cause complications during cataract surgery (eye surgery for cataracts; see section "Warnings and precautions").
It is important that you inform your ophthalmologist immediately if you are using or have previously used silodosin.
Possible side effects are listed below:
Very common side effects (may affect more than 1 in 10 people)
Common side effects (may affect up to 1 in 10 people)
Uncommon side effects (may affect up to 1 in 100 people)
Rare side effects (may affect up to 1 in 1,000 people)
Very rare side effects (may affect up to 1 in 10,000 people)
Frequency not known (frequency cannot be estimated from the available data)
Tell your doctor if you notice that your sexual intercourse is affected.
Reporting of side effects
If you experience any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly to the Spanish Medicines and Healthcare Products Agency (AEMPS) through the website: https://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.
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 and blister after "EXP". The expiry date is the last day of the month shown.
Do not store above 30°C.
Store in the original package to protect from light and moisture.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help protect the environment.
Composition of Silodosin Krka
Appearance and packaging
Hard capsule (capsule)
4 mg hard capsules (capsules): Hard gelatin capsules size 3. The body and cap of the capsule are yellow-brown in color. The cap of the capsule is printed with black mark S 4 mg. The contents of the capsule are white powder.
8 mg hard capsules (capsules): Hard gelatin capsules size 0. The body and cap of the capsule are white in color. The cap of the capsule is printed with black mark S 8 mg. The contents of the capsule are white powder.
Silodosin Krka of all strengths is available in boxes containing:
Not all pack sizes may be marketed.
Marketing authorisation holder and manufacturer
Marketing authorisation holder
KRKA, d.d., Novo mesto, Šmarješka cesta 6, 8501 Novo mesto, Slovenia
Manufacturer
KRKA, d.d., Novo mesto, Šmarješka cesta 6, 8501 Novo mesto, Slovenia
You can obtain further information on this medicine from the local representative of the marketing authorisation holder:
KRKA Farmacéutica, S.L., Calle de Anabel Segura 10, 28108 Alcobendas, Madrid, Spain
This medicine is authorised in the Member States of the European Economic Area under the following names:
| Member State | Medicine name | 
| Hungary | Silodosin Krka 4 mg, 8 mg hard capsules | 
| Belgium | Silodosin Krka 4 mg Capsules Silodosin Krka 8 mg Capsules | 
| Spain | Silodosina Krka 4 mg, 8 mg hard capsules EFG | 
| France | SILODOSINE KRKA 4 mg, capsule SILODOSINE KRKA 8 mg, capsule | 
| Italy | SILODOSINA KRKA | 
Date of last revision of this leaflet: April 2019.
Detailed information on this medicine is available on the website of the Spanish Agency for Medicines and Healthcare Products (AEMPS) (http://www.aemps.gob.es).
The average price of SILODOSIN KRKA 8 mg HARD CAPSULES in October, 2025 is around 15.7 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.
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