


Package Leaflet: Information for the User
tamsulosin hydrochloride
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack
The active substance in Omnic Ocas is tamsulosin. It is a selective antagonist of alpha-1A/1D adrenergic receptors. It reduces the tension of the smooth muscles of the prostate and urethra, allowing urine to pass more easily through the urethra and facilitating urination. It also decreases the sensation of urgency.
Omnic Ocas is used in men for the treatment of lower urinary tract symptoms associated with an enlarged prostate gland (benign prostatic hyperplasia). These symptoms include: difficulty urinating (weak urine stream), dripping, urgent urination, and frequent need to urinate both at night and during the day.
Do not takeOmnic Ocas
Warnings and precautions
Consult your doctor or pharmacist before starting to take Omnic Ocas 0.4.
Children and adolescents
Do not give this medicine to children or adolescents under 18 years of age because it does not work in this population.
Taking Omnic Ocas 0.4 with other medicines
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines.
Taking Omnic Ocas with other medications in the same group (alpha-1 adrenergic receptor blockers) may cause an undesirable drop in blood pressure.
It is especially important that you inform your doctor if you are being treated at the same time with medications that can decrease the elimination of Omnic Ocas from the body (e.g., ketoconazole, erythromycin).
Taking Omnic Ocas 0.4 with food and drinks
You can take Omnic Ocas with or without food.
Pregnancy, breastfeeding, and fertility
Omnic Ocas is not indicated for use in women.
In men, abnormal ejaculation (alteration of ejaculation) has been reported. This means that semen is not released through the urethra, but rather goes into the bladder (retrograde ejaculation) or that the ejaculated volume is reduced or nonexistent (ejaculatory insufficiency). This phenomenon is harmless.
Driving and using machines
There is no evidence that Omnic Ocas affects the ability to drive or use tools or machines. However, you should keep in mind that dizziness can occur, in which case you should not perform activities that require attention.
Follow exactly the administration instructions of Omnic Ocas indicated by your doctor or pharmacist. In case of doubt, consult your doctor or pharmacist again.
The recommended dose is 1 tablet per day. You can take Omnic Ocas with or without food, preferably at the same time of day.
The tablet should be swallowed whole and not broken or chewed.
Omnic Ocas is a tablet designed to release the active substance gradually once the tablet is ingested. You may observe a remainder of the tablet in your stool. There is no risk of loss of efficacy since the active substance has already been released.
Omnic Ocas is usually prescribed for long periods of time. The effects on the bladder and urination are maintained during long-term treatment with Omnic Ocas.
If you think the action of Omnic Ocas is too strong or too weak, tell your doctor or pharmacist.
If you take more Omnic Ocas 0.4 than you should
Taking too many Omnic Ocas tablets can lead to an undesirable drop in blood pressure and an increase in heart rate, with a feeling of fainting. 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 medication and the amount ingested.
If you forget to take Omnic Ocas 0.4
If you have forgotten to take Omnic Ocas as recommended, you can take your daily dose of Omnic Ocas later that day. If you have missed the dose for a day, you can simply continue taking your daily tablet as prescribed.
Do not take a double dose to make up for forgotten doses.
If you stop taking Omnic Ocas 0.4
When treatment with Omnic Ocas is abandoned prematurely, your original symptoms may return. Therefore, take Omnic Ocas for the entire time your doctor prescribes it, even if your symptoms have disappeared. Always consult your doctor if you decide to stop treatment.
If you have any other questions about the use of this medicine, ask your doctor or pharmacist.
Like all medicines, Omnic Ocas can cause side effects, although not everybody gets them.
Common(may affect up to 1 in 10 people):
Uncommon(may affect up to 1 in 100 people):
Rare(may affect up to 1 in 1,000 people):
Very rare(may affect up to 1 in 10,000 people):
Not known(frequency cannot be estimated from the available data):
Reporting of side effects
If you experience any side effects, talk to your doctor or pharmacist, even if it is possible side effects not listed in this leaflet. You can also report side effects directly through the Spanish Medicines and Healthcare Products Agency (AEMPS) website: 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 Omnic Ocas after the expiry date which is stated on the blister after “EXP” and on the carton after “CAD” (month and year). The expiry date is the last day of the month stated.
Store this medicine in its original packaging.
This medicine does not require any special storage conditions.
Medicines should not be disposed of via wastewater or household waste. Return the containers and any unused medicines to the pharmacy. Ask your pharmacist how to dispose of containers and any unused medicines. This will help protect the environment.
Composition of Omnic Ocas 0.4
The active substance is tamsulosin hydrochloride 0.4 mg.
The other ingredients are: in the core of the tablet: macrogol 7,000,000, macrogol 8,000, magnesium stearate (E470b), butylhydroxytoluene (E321), colloidal silica (E551); in the coating of the tablet: hypromellose (E464) and the colorant yellow iron oxide (E172).
Appearance of the product and contents of the pack
Omnic Ocas tablets are round, yellow, film-coated, and marked with the code ‘04’.
Omnic Ocas tablets are packaged in aluminum blisters which are packaged in Omnic Ocas printed cardboard boxes. The packs contain 10, 14, 18, 20, 28, 30, 45, 50, 56, 60, 90, 100, or 200 tablets.
Not all pack sizes may be marketed.
Marketing authorization holder
Astellas Pharma, S.A.
Paseo de la Castellana, 259 D - Planta 31
28046 Madrid (Spain)
Manufacturer
Delpharm Meppel B.V.
Hogemaat 2
7942 JG Meppel
Netherlands
This leaflet was approved in 12/2013
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 OMNIC OCAS 0.4 mg PROLONGED-RELEASE FILM-COATED TABLETS in October, 2025 is around 10.96 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.
The best alternatives with the same active ingredient and therapeutic effect.
Discuss dosage, side effects, interactions, contraindications, and prescription renewal for OMNIC OCAS 0.4 mg PROLONGED-RELEASE FILM-COATED TABLETS – subject to medical assessment and local rules.