Methenamine, Sodium Phosphate Monobasic, Phenyl Salicylate, Methylene Blue, and Hyoscyamine

Pediatric Medication

Brand Names: US

Azuphen MB; Hyolev MB; Phosphasal; Ur N-C; Uramit MB; Urelle; Uretron D/S; Uribel; Urimar-T; Urin DS; Uro-458; Uro-L [DSC]; Uro-MP; UroAv-81; UroAv-B; Ustell; Uticap; Utira-C; Utrona-C

What is this drug used for?

  • It is used to ease pain from a bladder infection.
  • It is used to treat muscle spasms of the urinary system.
  • It is used to treat urinary signs.
  • It may be given to you for other reasons. Talk with the doctor.

What do I need to tell the doctor BEFORE my child takes this drug?

  • If your child has an allergy to this drug or any part of this drug.
  • If your child is allergic to any drugs like this one or any other drugs, foods, or other substances. Tell the doctor about the allergy and what signs your child had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
  • If your child has any of these health problems: Bowel block, enlarged prostate, glaucoma, myasthenia gravis, or trouble passing urine.
  • If your child has heart problems.
  • If your child is younger than 6 years of age. Do not give this drug to a child younger than 6 years of age.
This is not a list of all drugs or health problems that interact with this drug.
Tell the doctor and pharmacist about all of your child’s drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for your child to take this drug with all of his/her drugs and health problems. Do not start, stop, or change the dose of any drug your child takes without checking with the doctor.

What are some things I need to know or do while my child takes this drug?

  • Tell all of your child’s health care providers that your child is taking this drug. This includes your child’s doctors, nurses, pharmacists, and dentists.
  • Have your child use care when doing tasks that call for clear eyesight.
  • Do not give more than the doctor told you to give. Giving more than you are told may raise the chance of very bad side effects.
  • Do not give this drug to your child for longer than you were told by the doctor.
  • This drug may prevent other drugs taken by mouth from getting into the body. If your child takes other drugs by mouth, you may need to give them at some other time than this drug. Talk with the doctor.
  • If this drug is taken by accident, get medical help right away.
  • Use with care in children. Talk with the doctor.

If your child is pregnant or breast-feeding a baby:

  • Talk with the doctor if your child is pregnant, becomes pregnant, or is breast-feeding a baby. You will need to talk about the benefits and risks of using this drug.

What are some side effects that I need to call my child’s doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your child’s doctor or get medical help right away if your child has any of the following signs or symptoms that may be related to a very bad side effect:
  • Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
  • A fast heartbeat.
  • Blurred eyesight.
  • Dizziness.
  • Shortness of breath.
  • Trouble passing urine.

What are some other side effects of this drug?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your child’s doctor or get medical help if any of these side effects or any other side effects bother your child or do not go away:
  • Upset stomach or throwing up.
  • Feeling sleepy.
  • Dry mouth.
  • Flushing.
  • Change in color of urine or stool to blue or green.
These are not all of the side effects that may occur. If you have questions about side effects, call your child’s doctor. Call your child’s doctor for medical advice about side effects.
You may report side effects to your national health agency.

How is this drug best given?

Give this drug as ordered by your child’s doctor. Read all information given to you. Follow all instructions closely.
  • Give this drug with or without food.
  • Give this drug with a full glass of water.
  • Have your child drink lots of noncaffeine liquids unless told to drink less liquid by your child’s doctor.
  • Do not give antacids or drugs for loose stools (diarrhea) within 1 hour of this drug.
  • If your child also takes ketoconazole, give it at least 2 hours before your child takes this drug.
  • Keep giving this drug to your child as you have been told by your child’s doctor or other health care provider, even if your child feels well.
  • To gain the most benefit, do not miss giving your child doses.

What do I do if my child misses a dose?

  • Give a missed dose as soon as you think about it.
  • If it is close to the time for your child’s next dose, skip the missed dose and go back to your child’s normal time.
  • Do not give 2 doses at the same time or extra doses.

How do I store and/or throw out this drug?

  • Store at room temperature.
  • Protect from light.
  • Store in a dry place. Do not store in a bathroom.
  • Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
  • Check with your pharmacist about how to throw out unused drugs.

General drug facts

  • If your child’s symptoms or health problems do not get better or if they become worse, call your child’s doctor.
  • Do not share your child’s drug with others and do not give anyone else’s drug to your child.
  • Keep a list of all your child’s drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your child’s doctor.
  • Talk with your child’s doctor before giving your child any new drug, including prescription or OTC, natural products, or vitamins.
  • Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, nurse, pharmacist, or other health care provider.
  • If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

Consumer Information Use and Disclaimer

This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from the healthcare provider. You must talk with the healthcare provider for complete information about the risks and benefits of using this medicine.

Last Reviewed Date



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