Urex (oral)

Urex (oral)

Urex (oral)

Uses for Urex

Before using Urex

When deciding whether to use a medicine, the risks of taking the medicine must be weighed against the benefits it produces. This is a decision that you and your doctor will make. The following should be noted with this medicine:

Allergies

Tell your doctor if you have ever had an unusual or allergic reaction to this medicine or any other medicines. Also tell your doctor if you have other allergies, such as to foods, dyes, preservatives or animals. For over-the-counter products, read the label or package ingredients carefully.

Pediatrics

Although there is no specific information comparing the use of methenamine in children with its use in other age groups, this drug is not expected to cause any different side effects or problems in children than in adults.

geriatrics

Many drugs have not been specifically studied in older people. Therefore, it may not be known whether they work the same way as they do in younger adults or whether they cause different side effects or problems in older people. There is no specific information comparing the use of methenamine in the elderly with use in other age groups.

Breastfeeding

There are insufficient studies in women to determine the risk to infants when using this drug while breast-feeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.

Drug interactions

Although certain medicines should not be used together at all, in other cases two different medicines can be used together, although interactions may occur. In these cases, your doctor may want to change the dose or other precautions may be necessary. If you are taking this medicine, it is particularly important that your doctor knows whether you are taking any of the medicines listed below. The following interactions were selected for their potential significance and are not necessarily exhaustive.

The use of this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or to change some of the other medications you are taking.

• Acetazolamid
• Mafenide
• Silbersulfadiazin
• Sulfabenzamid
• Sulfacetamid
• Sulfacytin
• Sulfadiazin
• Sulfamerazin
• Sulfamethazin
• Sulfamethoxazol
• Sulfanilamid
• Sulfapyridin
• Sulfasalazin
• Sulfathiazol
• Sulfisoxazol
• Zonisamid

Interactions with food/tobacco/alcohol

Certain medicines should not be taken during or near food or consumption of certain foods because interactions may occur. Consuming alcohol or tobacco with certain medications can also lead to interactions. The following interactions were selected for their potential significance and are not necessarily exhaustive.

Other medical problems

The presence of other medical problems may affect the use of this medicine. Be sure to tell your doctor if you have any other medical problems, especially:

• Dehydration (schwerwiegend) oder
• Nierenerkrankung (schwer) – Bei Patienten mit schwerer Nierenerkrankung, die Methenamin einnehmen, kann es zu einer Zunahme von Nebenwirkungen kommen, die die Nieren beeinträchtigen

• Lebererkrankung (schwer) – Bei Patienten mit schwerer Lebererkrankung, die Methenamin einnehmen, können die Symptome ihrer Lebererkrankung zunehmen

Proper use of Urex

Before you start taking this medicine, check your urine with phenaphthazine paper or another test to see if it is acidic. For this medicine to work properly, your urine must be acidic (pH 5.5 or lower). If you have any questions about this, contact your doctor.

The following changes in your diet may help your urine become more acidic. However, if you are on a special diet (e.g. because of diabetes), consult your doctor first. Avoid most fruits (especially citrus fruits and juices), milk and other dairy products, and other foods that make urine less acidic. Also, avoid antacids unless your doctor tells you otherwise. Eating more protein and foods like cranberries (especially cranberry juice with added vitamin C), prunes, or prunes can also help. If your urine is still not acidic enough, contact your doctor.

If this medicine causes nausea or stomach upset, it may be taken after meals and at bedtime.

For patients taking the dry granule form of this medicine:

• Lösen Sie den Inhalt jeder Packung unmittelbar vor der Einnahme in 2 bis 4 Unzen kaltem Wasser auf. Gut umrühren. Achten Sie darauf, die gesamte Flüssigkeit zu trinken, um die volle Dosis des Arzneimittels zu erhalten.

For patients taking this medicine in oral liquid form:

• Verwenden Sie einen speziell gekennzeichneten Messlöffel oder ein anderes Gerät, um jede Dosis genau abzumessen. Der durchschnittliche Teelöffel im Haushalt fasst möglicherweise nicht die richtige Menge Flüssigkeit.

For patients taking the enteric-coated tablet form of this medication:

• Tabletten im Ganzen schlucken. Brechen, zerdrücken oder nehmen Sie es nicht, wenn es abgebrochen ist.

To help your infection heal completely, continue taking this medicine throughout your treatment, even if you feel better after a few days. Don't miss a dose.

dosage

The dose of this medicine is different for different patients. Follow your doctor's instructions or the label directions. The following information includes average doses of this medicine only. If your dose is different, do not change it unless your doctor tells you to.

The amount of medicine you take depends on the strength of the medicine. In addition, the number of doses you take each day, the time between doses, and how long you take the medicine depend on the medical problem for which you are using the medicine.

• Zur Behandlung von Harnwegsinfektionen:
  • Für die orale Darreichungsform (Methenamin-Hippurat-Tabletten):
    • Erwachsene und Kinder ab 12 Jahren – 1 Gramm zweimal täglich. Morgens und abends einnehmen.
    • Kinder bis 6 Jahre – Anwendung und Dosierung müssen von Ihrem Arzt festgelegt werden.
    • Kinder im Alter von 6 bis 12 Jahren – 500 Milligramm (mg) bis 1 Gramm zweimal täglich. Morgens und abends einnehmen.
  • Für die orale Darreichungsform (magensaftresistente Tabletten mit Methenaminmandelat, normale Tabletten, Lösung und Suspension):
    • Erwachsene und Kinder ab 12 Jahren – 1 Gramm viermal täglich. Nach den Mahlzeiten und vor dem Schlafengehen einnehmen.
    • Kinder bis 6 Jahre – Die Dosis richtet sich nach dem Körpergewicht. Die übliche Dosis beträgt 18,3 mg pro Kilogramm (kg) (8,3 mg pro Pfund) Körpergewicht viermal täglich. Nach den Mahlzeiten und vor dem Schlafengehen einnehmen.
    • Kinder im Alter von 6 bis 12 Jahren – 500 mg viermal täglich. Nach den Mahlzeiten und vor dem Schlafengehen einnehmen.

Missed dose

If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and return to your regular dosing schedule. Do not double the dose.

storage

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Protect from freezing.

Keep away from children.

Do not keep medications that are outdated or no longer needed.

Precautions when using Urex

If your symptoms do not improve within a few days or worsen, contact your doctor.

Urex side effects

In addition to the necessary effects, a medicine may also have some undesirable effects. Although not all of these side effects may occur, medical attention may be required if they occur.

Consult your doctor immediately if any of the following side effects occur:

Less common

• Hautausschlag

Rarely

• Blut im Urin
• Schmerzen im unteren Rückenbereich
• Schmerzen oder Brennen beim Wasserlassen

Some side effects may occur that usually do not require medical attention. These side effects may disappear during treatment as your body gets used to the medicine. Your doctor may also be able to give you ways to prevent or reduce some of these side effects. If any of the following side effects persist or are bothersome, or if you have any questions, contact your doctor:

Less common

• Übelkeit und Erbrechen

Some patients may also experience other side effects not listed. If you notice other side effects, contact your doctor.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Commonly used brand names

In the USA

• Hiprex
• Mandelamin
• Urex

In Canada

• Urasal

Available dosage forms:

• Tablette

Therapeutic class: Antiseptic

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