METHENAMINE

(meh THEH na meen) Brand: Hiprex, Mandelamine, Urex

What is the most significant information I must know about methenamine?

• Take all of the methenamine that has been predesigned for you even if you begin to feel better. Symptoms may start to improve till the infection is completely treated.

• Take every doze with a full glass of water. Plenty of fluid must be consumed while taking methenamine.

• Your healthcare provider may recommend drinking additional water and/or determined fruit juices (e.g., cranberry, plum, prune) and heighten protein in the diet while taking methenamine to ensure adequate hydration and acidity of the urine. It may also be recommended to avoid citrus fruits and juices (e.g., orange, grapefruit, lemon), milk and dairy commodity, and antacids during treatment with methenamine. These commodity may decrease the effectiveness of methenamine. Follow your healthcare provider's instructions.

What is methenamine?

• Methenamine is a urinary antiinfective medication. Methenamine fights bacteria in the urine and bladder.

• Methenamine may be used to treat and prevent urinary tract infections.

• Methenamine may also be used for purposes another than those listed here.

What must I discuss with my healthcare provider till taking methenamine?

• Till taking methenamine, conversation to your doctor if you

· have liver problems;

· have kidney problems;

· have another medical conditions; or

· take another medications.

• You may not be able to take methenamine, or you may require a dosage adjustment or particular monitoring during treatment.

• Methenamine is in the FDA pregnancy category C. This means that it is not known whether it will be deleterious to an unborn child. Do not take methenamine without first talking to your doctor if you are pregnant or could become pregnant during treatment.

• Methenamine passes into breast milk and may affect a nursing child. Do not take methenamine without first talking to your doctor if you are breast-feeding a baby.

How must I take methenamine?

• Take methenamine exactly as directed by your doctor. If you do not understand these instructions, ask your doctor, nurse, or pharmacist to explain them to you.

• Take every doze with a full glass of water. Plenty of fluid must be consumed while taking methenamine.

• Methenamine must be taken with food to reduce stomach upset.

• Do not crush or chew the enteric-coated tablets. Swallow them intact. They are specially formulated to be smaller irritating to the stomach. Conversation to your doctor if swallowing the tablets is difficult.

• Shake the liquid form of methenamine well till measuring a doze. To ensure that you get the correct doze, measure the suspension with a dose-measuring spoon, dropper, or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist where you can get one.

• It is significant to take methenamine at regularly scheduled intervals to get the most benefit.

• Take all of the methenamine that has been predesigned for you even if you begin to feel better. Symptoms may start to improve till the infection is completely treated.

• Store methenamine at room temperature away from moisture and heat.

What happens if I miss a dose?

• Take the missed doze as soon as you remember. However, if it is nearly time for the following doze, skip the doze you missed and take only the following regularly scheduled doze. Do not take a double doze of this medicine unless otherwise directed by your doctor.

What happens if I overdose?

• Search abnormal medical attention if an overdose is suspected.

• Symptoms of a methenamine overdose are not known.

What must I avoid while taking methenamine?

What are the possible side effects of methenamine?

• If you experience any of the next serious side effects, stop taking methenamine and search abnormal medical attention or contact your doctor immediately:

· an allergic reaction (shortness of breath; closing of the throat; swelling of the lips, person, or tongue; or hives;

· lower back or side pain;

· blood in urine; or

· increasingly painful or difficult urination.

• Another, smaller serious side effects may be more likely to occur. Continue to take methenamine and conversation to your doctor if you experience

· nausea or upset stomach;

· decreased appetite; or

· skin rash.

• Side effects another than those listed here may also occur. Conversation to your doctor about any side effect that seems unusual or that is especially bothersome. You may message side effects to FDA at 1-800-FDA-1088.

What another drugs will affect methenamine?

• Do not take methenamine without first talking to your doctor if you are taking:

· a carbonic anhydrase inhibitor such as acetazolamide (Diamox), dichlorphenamide (Daranide), or methazolamide (Glauctabs, MZM, Neptazane);

· a sulfa product such as sulfadiazine, sulfamethoxazole (Bactrim, Septra, others), sulfasalazine (Azulfidine), and others;

· a diuretic (water pill); or

· a product that contains aluminum, calcium, magnesium, sodium bicarbonate, potassium or sodium citrate, or citric acid (such as antacids, vitamin or mineral pills, urinary alkalinizers, and another medications).

• You may not be able to take methenamine, or you may require a dosage adjustment or particular monitoring during treatment if you are taking any of the medicines listed above.

• Drugs another than those listed here may also interact with methenamine. Conversation to your doctor and pharmacist till taking any prescription or over-the-counter medicines, including vitamins, minerals, and herbal products.

Where can I get more information?

• Your pharmacist has additional information about methenamine written for health professionals that you may read.

Remember, hold this and all another medicines out of the reach of children, never share your medicines with others, and use this medicine only for the indication prescribed.

Disclaim: Each effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses external of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way must be construed to indicate that the drug or drug combination is safety, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the help of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

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