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Terazosin - ein Alpha-Blocker

Hytrin

Take terazosin once every day.

Your first dose of terazosin may make you feel dizzy or faint, or start sweating. Take your first dose at bedtime and remain lying down until these symptoms have completely passed.

Terazosin can cause dizziness which may affect your ability to drive. Make sure your reactions are normal before you drive and before you use tools or machines.

At a glance

  • Terazosin is a medicine that treats prostate enlargement and high blood pressure.

  • It works by relaxing muscles around the bladder and prostate, and widening blood vessel walls.

  • Take your first dose at bedtime as it can cause dizziness.

  • Do not drink alcohol, as it increases the risk of side-effects like feeling dizzy.

  • Tell your doctor if you have cataract eye surgery planned, as it can cause an eye problem.

  • Common side-effects include feeling tired, dizzy, or light-headed when standing up.

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About terazosin

Art des Medikaments

Ein Alpha-Blocker

Verwendet für

Enlargement of the prostate gland in men; high blood pressure

Auch genannt

Hytrin®

Verfügbar als

Tabletten

Terazosin belongs to a group of medicines known as alpha-blockers. It works by blocking the action of certain nerve impulses. This blocking action is useful in two different medical conditions. It is used to help control the symptoms of prostate gland enlargement in men, and it is also prescribed to reduce high blood pressure in people with Bluthochdruck.

The prostate gland commonly becomes larger in older men. Prostate gland enlargement is also called benign prostatic hyperplasia (BPH). The prostate gland is situated close to the bladder, so its enlargement can cause problems with passing urine. Common symptoms that are experienced are having to wait before your urine starts to flow, taking longer at the toilet, dribbling urine, and a feeling that your bladder is not quite empty. Terazosin works by relaxing the muscles around your bladder and prostate gland so that you can pass urine more easily.

Terazosin works in high blood pressure by widening (relaxing) blood vessel walls. This lowers your blood pressure and allows blood to circulate more freely around your body.

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking terazosin it is important that your doctor knows:

  • Wenn Sie sich jemals schwindelig oder ohnmächtig fühlen, wenn Sie aufstehen, oder wenn Sie jemals nach dem Wasserlassen ohnmächtig geworden sind.

  • Wenn Sie eine Kataraktoperation benötigen.

  • Wenn Sie schwanger sind oder stillen.

  • Wenn Sie jemals eine allergische Reaktion auf ein Medikament hatten.

  • Wenn Sie andere Medikamente einnehmen oder verwenden. Dazu gehören alle Medikamente, die Sie einnehmen und die ohne Rezept erhältlich sind, sowie pflanzliche und ergänzende Medikamente.

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  • Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about terazosin and will provide you with a full list of the side-effects which you may experience from taking it.

  • Take terazosin exactly as your doctor tells you to. Swallow the tablet with a drink of water. You can take terazosin either before or after a meal.

  • There are several strengths of terazosin tablet available: 1 mg, 2 mg, 5 mg, and 10 mg. When you first start the treatment, your doctor may give you a low dose which will then later be increased. This allows your doctor to make sure that you have the dose that helps your condition and avoids any unwanted symptoms.

  • Your first dose of terazosin may make you feel dizzy or faint, so it is important that you take it just before you go to bed. If you feel dizzy or weary, or if you start sweating, remain lying down until these symptoms have completely gone.

  • Take terazosin once every day. After the first dose, you can take your dose at a time of day that best suits you. You should, however, try to take your doses at the same time of day each day, as this will help you to remember to take the tablets regularly.

  • Wenn Sie eine Dosis vergessen haben, nehmen Sie sie ein, sobald Sie sich daran erinnern. Wenn Sie sich erst am nächsten Tag daran erinnern, lassen Sie die vergessene Dosis aus. Nehmen Sie nicht zwei Dosen gleichzeitig ein, um eine vergessene Dosis auszugleichen.

  • Terazosin can cause dizziness, particularly when you first start taking it. This may affect your ability to drive. Make sure your reactions are normal before you drive or do things which would be dangerous if you were not fully alert.

  • Try to keep your regular appointments with your doctor. This is so your doctor can check on your progress. Your doctor is likely to want to take your blood pressure from time to time, particularly when you first start the treatment.

  • You are advised not to drink alcohol while you are on terazosin. Alcohol increases the risk of side-effects from terazosin, such as feeling faint or dizzy.

  • If you are taking terazosin for urinary symptoms, consider reducing or stopping the amount of caffeine you drink (commonly found in tea, coffee and cola). Caffeine can make your symptoms worse, so drinking less of these things may benefit you. Also, if you are a smoker, stopping smoking may significantly improve your symptoms. This is because nicotine irritates the bladder. You can ask your doctor for advice on quitting.

  • If you are having an operation or dental treatment, tell the person carrying out the treatment that you are taking terazosin. This is because your blood pressure may drop suddenly if you have an anaesthetic. If you are having cataract surgery, it is particularly important that you tell your surgeon you are on terazosin. This is because an eye problem known as 'floppy iris syndrome' has developed in some people and your doctor may advise you to stop taking terazosin for a short while.

  • If you buy any medicines check with a pharmacist that they are suitable to take with your other medicines. Some painkillers called non-steroidal anti-inflammatory drugs (NSAIDs) can reduce the blood pressure-lowering effect of terazosin.

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Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the most common ones associated with terazosin. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.

Common terazosin side-effects (these affect fewer than 1 in 10 people)

Was kann ich tun, wenn ich das erlebe?

Feeling tired, dizzy or faint, blurred vision

Fahren Sie nicht und benutzen Sie keine Werkzeuge oder Maschinen, während Sie beeinträchtigt sind

Feeling light-headed when getting up from a lying or sitting position

Getting up more slowly may help. If you begin to feel dizzy, lie down so that you do not faint, then sit for a few moments to prevent the dizziness returning

Übelkeit (Nausea)

Halten Sie sich an einfache Speisen - vermeiden Sie reichhaltige oder scharfe Mahlzeiten

The sensation of having a 'thumping heart' (palpitations), blocked nose, swollen hands or feet

Wenn eines dieser Probleme auftritt, sprechen Sie mit Ihrem Arzt

Wenn Sie andere Symptome bemerken, die Ihrer Meinung nach auf die Tabletten zurückzuführen sein könnten, sprechen Sie mit Ihrem Arzt oder Apotheker für weitere Ratschläge.

  • Bewahren Sie alle Medikamente außerhalb der Reichweite und Sicht von Kindern auf.

  • An einem kühlen, trockenen Ort aufbewahren, fern von direkter Hitze und Licht.

Wichtige Informationen über alle Medikamente

Nehmen Sie niemals mehr als die vorgeschriebene Dosis ein. Wenn Sie vermuten, dass Sie oder jemand anderes eine Überdosis dieses Medikaments eingenommen haben könnte, gehen Sie in die Notaufnahme Ihres örtlichen Krankenhauses. Nehmen Sie den Behälter mit, auch wenn er leer ist.

Dieses Medikament ist für Sie. Geben Sie es niemals an andere Personen weiter, auch wenn deren Zustand ähnlich erscheint wie Ihrer.

Bewahren Sie keine abgelaufenen oder unerwünschten Medikamente auf. Bringen Sie sie zu Ihrer örtlichen Apotheke, die sie für Sie entsorgt.

Wenn Sie Fragen zu diesem Medikament haben, fragen Sie Ihren Apotheker.

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Häufig gestellte Fragen

How does terazosin help with an enlarged prostate gland?

Terazosin works by relaxing the muscles around your bladder and prostate gland. This action makes it easier for you to pass urine, which helps to relieve symptoms associated with prostate gland enlargement (benign prostatic hyperplasia), such as having to wait before your urine starts to flow, taking longer at the toilet, dribbling urine, and feeling that your bladder is not quite empty.

Can I take terazosin if I am pregnant or breastfeeding?

If you are pregnant or breastfeeding, it is important to inform your doctor. They need to know this information before you start taking terazosin to determine if the medicine is suitable for you.

What should I do if I forget to take a dose of terazosin?

If you forget to take a dose, take it as soon as you remember. However, if you don't remember until the following day, you should skip the forgotten dose. It is important not to take two doses at the same time to compensate for a missed dose.

Are there any lifestyle changes I should consider while taking terazosin for urinary symptoms?

Yes, if you are taking terazosin for urinary symptoms, it is advisable to consider reducing or stopping your consumption of caffeine, which is commonly found in tea, coffee, and cola. Caffeine can worsen your symptoms, so drinking less may be beneficial. Additionally, if you smoke, quitting may significantly improve your symptoms because nicotine irritates the bladder. You can discuss quitting with your doctor for advice.

Why do I need to tell my surgeon if I am taking terazosin before cataract surgery?

It is particularly important to inform your surgeon you are on terazosin before cataract surgery because some people have developed an eye problem known as 'floppy iris syndrome'. Your doctor may advise you to temporarily stop taking terazosin for a short period before the surgery.

Can I drink alcohol while taking terazosin?

You are advised not to drink alcohol while taking terazosin. Alcohol can increase the risk of side-effects from the medication, such as feeling faint or dizzy.

What should I do if I experience dizziness or faintness when starting terazosin?

Your first dose of terazosin may make you feel dizzy or faint, so it's important to take it just before you go to bed. If you feel dizzy, weary, or start sweating, remain lying down until these symptoms have completely disappeared. If you feel light-headed when getting up from a lying or sitting position, trying to get up more slowly may help. If you begin to feel dizzy, lie down to prevent fainting and then sit for a few moments to stop the dizziness from returning.

Weiterführende Literatur und Referenzen

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About the authorView full bio

Author image

Michael Stewart, MRPharmS

Manager für die Überprüfung von Beipackzetteln – Auftragnehmer, Apotheker

BPharm (Hons), MRPharmS

Michael ist ein Gemeindapotheker, der in den Midlands und South Yorkshire praktiziert und über mehr als 20 Jahre Erfahrung in der Beratung zu Medikamenten und medizinischen Bedingungen verfügt. Er hat einen starken Hintergrund in der Gesundheitsausbildung, da er Schulungskurse für Apothekenteams und Mitarbeiter von Pflegeeinrichtungen, einschließlich Krankenschwestern, erstellt und durchgeführt hat. Er hat auch zu Apothekenbeiräten für das Management von geringfügigen Erkrankungen in der Gemeinschaft beigetragen.

About the reviewer

Author image

Sid Dajani

Sultan Dajani qualified at the London School of Pharmacy in 1994 and became the youngest elected member of the Royal Pharmaceutical Society council since its founding in 1842.

Artikelverlauf

Die Informationen auf dieser Seite wurden von qualifizierten Klinikern verfasst und begutachtet.

  • Next review due: 17 Apr 2027
  • 16. Mai 2024 | Neueste Version

    Zuletzt aktualisiert von

    Michael Stewart, MRPharmS

    Begutachtet von

    Sid Dajani
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