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Methenamine, Phenyl Salicylate, Methylene Blue, Benzoic Acid, and Hyoscyamine
What is it? Overview Usage Side Effects and Warnings

Methenamine, Phenyl Salicylate, Methylene Blue, Benzoic Acid, and Hyoscyamine Overview

Written by FoundHealth.

(meth EN a meen, fen nil sa LIS i late, METH i leen bloo, ben ZOE ik AS id & hye oh SYE a meen)

U.S. Brand Names


Pharmacologic Category

Antibiotic, Miscellaneous

Reasons not to take this medicine

• If you have an allergy to methenamine, phenyl salicylate, methylene blue, benzoic acid, hyoscyamine, or any other part of this medicine.

• Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other symptoms involved.

How does it work?

• Methenamine, benzoic acid, and methylene blue work to injure the bacteria and fight the infection.

• Phenyl salicylate relieves pain.

• Hyoscyamine slows movement through the urinary tract, decreasing spasms.

How is it best taken?

• To gain the most benefit, do not miss doses.

• Use prescription as directed, even if feeling better.

• Take this medicine with a full glass of water.

• Drink plenty of noncaffeine-containing liquid unless told to drink less liquid by healthcare provider.

What do I do if I miss a dose? (does not apply to patients in the hospital)

• Take a missed dose as soon as possible.

• If it is almost time for the next dose, skip the missed dose and return to your regular schedule.

• Do not take a double dose or extra doses.

What should I monitor?

• Change in condition being treated. Is it better, worse, or about the same?

• Dry mouth may cause an increase in cavities. Take good care of your teeth. See a dentist regularly.

• You may need to check the acid content (pH) of your urine using a dipstick test.

How should I store this medicine?

• Store at room temperature.

• Protect from moisture. Do not store in a bathroom or kitchen.

General statements

• If you have a life-threatening allergy, wear allergy identification at all times.

• Do not share your medicine with others and do not take anyone else's medicine.

• Keep all medicine out of the reach of children and pets.

• Most medicines can be thrown away in household trash after mixing with coffee grounds or kitty litter and sealing in a plastic bag.

• Keep a list of all your medicines (prescription, natural products, supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, nurse practitioner, pharmacist, physician assistant).

• Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or in Canada to Health Canada's Canada Vigilance Program at 1-866-234-2345.

• Talk with healthcare provider before starting any new medicine, including over-the-counter, natural products, or vitamins.

Created: 2008-12-04 13:39:31.0

Modified: 2010-03-22 09:15:47.0

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