


Ask a doctor about a prescription for CATAPRESAN 0.150 mg TABLETS
Package Leaflet: Information for the Patient
Catapresan 0.150 mg Tablets
Clonidine Hydrochloride
Read this package leaflet carefully before you start taking this medicine, because it contains important information for you.
Contents of the Package Leaflet
Catapresan contains an active substance called clonidine, which belongs to a group of medicines known as imidazoline receptor agonists (medicines that lower blood pressure).
Catapresan is used to treat high blood pressure in all its forms.
Do not take Catapresan:
Warnings and precautions
Talk to your doctor or pharmacist before taking Catapresan:
It is not expected that clonidine will have any therapeutic effect if you have hypertension caused by pheochromocytoma (a disease that can lead to high blood pressure).
Children and adolescents
Do not give Catapresan to children and adolescents. In particular, if used off-label in combination with methylphenidate (a medicine to treat attention deficit hyperactivity disorder (ADHD) in children), serious adverse reactions have been observed, including death.
Taking Catapresan with other medicines
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines.
In particular, tell your doctor if you are taking any of the following types of medicines:
Clonidine may enhance the effects of central nervous system depressants (also known as sedatives or tranquilizers).
Taking Catapresan with food, drinks, and alcohol
Clonidine may enhance the effects of alcohol.
Pregnancy, breastfeeding, and fertility
If you are pregnant or breastfeeding, think you may be pregnant, or plan to become pregnant, consult your doctor or pharmacist before using this medicine.
During pregnancy, clonidine should only be used in case of extreme necessity, with careful monitoring of the mother and the child, as clonidine may reduce fetal heart rate and cause a transient increase in blood pressure in the newborn after birth.
There is no adequate experience regarding the long-term effects of prenatal exposure.
Breastfeeding is not recommended while using this medicine, as there is not enough information available.
There are no data on the effect of clonidine on fertility.
Driving and using machines
Catapresan may cause sedation, drowsiness, and accommodation disorders (difficulty focusing the eyes). Therefore, caution is recommended when driving or operating machinery.
Catapresan contains lactose.
If your doctor has told you that you have an intolerance to some sugars, consult them before taking this medicine.
Follow exactly the administration instructions of this medicine given by your doctor or pharmacist. If you are unsure, consult your doctor or pharmacist again.
Treatment of hypertension requires regular medical supervision.
The dose of Catapresan will be determined according to the blood pressure response of each patient.
Most mild and moderate hypertension responds to a medium dose of 2 tablets per day, one in the morning and one at night before bed. It is recommended to start treatment with 1 tablet at night and after 10-15 days continue with one in the morning and one at night.
If necessary, the dose can be increased after a period of 2-4 weeks until the desired response is achieved, preferably at night.
In cases of severe hypertension, it may be necessary to further increase the dose of each intake up to 2 tablets (0.3 mg); this dose can be repeated up to four times a day (8 tablets = 1.2 mg).
The tablets should be taken with a little liquid.
The tablet can be divided into equal doses.
Kidney problems
The dose should be determined according to:
In both cases, close monitoring is required.
Since only a minimal amount of clonidine is eliminated during routine hemodialysis, it is not necessary to administer a supplementary dose of clonidine after dialysis.
If you take more Catapresan than you should
Symptoms due to overdose include decreased pupil diameter, lethargy, slow heart rate, low blood pressure, decreased body temperature, sleep (including coma), and decreased respiratory rate.
Additionally, an increase in blood pressure may occur.
If you take more Catapresan than you should, consult your doctor, pharmacist, or call the Toxicology Information Service at 91 562 04 20 immediately.
If you forget to take Catapresan
Do not take a double dose to make up for forgotten doses.
If you stop taking Catapresan
Do not stop treatment abruptly without consulting your doctor first, as after prolonged treatment at high doses, restlessness, palpitations, rapid increase in blood pressure, nervousness, tremors, headaches, or nausea may occur.
If you are taking treatment in combination with a beta-blocker, you should follow your doctor's instructions to stop treatment.
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.
Side effects are usually mild and tend to decrease as treatment continues.
Very common side effects (occurring in more than 1 in 10 patients) are dizziness, sedation, decrease in blood pressure when changing from a sitting to a standing position (orthostatic hypotension), and dry mouth.
Common side effects (occurring in between 1 and 10 in 100 patients) are depression, sleep disorders, headache, constipation, nausea, vomiting, pain in the salivary gland, difficulty achieving or maintaining an erection, and fatigue.
Uncommon side effects (occurring in between 1 and 10 in 1,000 patients) are delirium, hallucinations, nightmares, tingling sensation in the skin (paresthesia), slow heart rate (sinus bradycardia), blockage of blood circulation that causes pain and color changes, especially in the fingers and toes (Raynaud's phenomenon), itching, rash, hives, and malaise.
Rare side effects (occurring in between 1 and 10 in 10,000 patients) include increased breast size (gynecomastia), reduced tear production, heart block (atrioventricular block), nasal dryness, generalized disorder of intestinal movements (pseudo-obstruction of the colon), hair loss, and increased blood sugar levels.
Side effects of unknown frequency are confusion, decreased sexual desire, difficulty focusing the eyes, and slow heart rate (bradyarrhythmia).
If you experience any side effects, talk to your doctor or pharmacist, even if they are not listed in this package leaflet.
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 package leaflet. You can also report side effects directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.
No special storage conditions are required.
Keep this medicine out of the sight and reach of children.
Do not use this medicine 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. Ask your pharmacist how to dispose of medicines no longer required. These measures will help protect the environment.
Composition of Catapresan
Appearance of the product and pack contents
Catapresan are white, round, and beveled-edge tablets on both sides. One side has the engraving 15C/15C or N/150 and a score line.
Pack of 30 tablets.
Marketing Authorization Holder
Glenwood GmbH Pharmazeutische Erzeugnisse
Arabellastr.17
81925 Munich
Germany
Manufacturer
Delpharm Reims S.A.S.
10 rue Colonel Charbonneaux
51100 Reims
France
Date of the last revision of this package leaflet: July 2013
Detailed and up-to-date information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/
The average price of CATAPRESAN 0.150 mg TABLETS in October, 2025 is around 3.11 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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