On this page · 8 sections

Hyolev MB

Generic name: hyoscyamine, methenamine, methylene blue, phenyl salicylate, sodium biphosphate

Brand names: Phosphasal, urelle, Uribel, Urimar-T, Urin D/S, Uro-MP, Ustell, Vilamit MB, Vilevev MB, Azuphen MB, Hyolev MB, UR N-C, Uramit MB, Uro-L

Last updated November 2, 2026 0 views
Share

What is Hyolev MB?

Hyoscyamine has many effects in the body, including helping to relieve muscle spasms.

Methenamine and methylene blue act as mild antiseptics that help fight bacteria in the urine and bladder.

Phenyl salicylate is a mild pain reliever.

Sodium biphosphate is a type of phosphorus, which is a natural substance important in every cell of the body.

Hyolev MB is a combination medicine used to treat bladder irritation (pain, spasms, inflammation) caused by urinary tract infection. Hyolev MB is also used to prevent bladder discomfort during a medical procedure.

Hyolev MB may also be used for reasons not listed in this medication guide.

This section was rewritten for readability and reviewed for meaning.

How should I take Hyolev MB?

Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.

Drink plenty of liquids while you are taking this medicine.

Hyoscyamine can slow your digestion, and it may take longer for your body to absorb any medicines you take by mouth.

Store at room temperature away from moisture, heat, and light. Keep the bottle tightly closed when not in use.

This section was rewritten for readability and reviewed for meaning.

Warnings

Many drugs can interact with methylene blue. During your treatment with this medicine, do not start or stop using any other medications without your doctor's advice.

If you take an antidepressant or psychiatric medication, call your doctor right away if you notice signs of a serious drug interaction, including: confusion, memory problems, feeling overly energetic (mentally or physically), loss of coordination, muscle twitching, shivering, sweating, diarrhea, and/or fever.

This section was rewritten for readability and reviewed for meaning.

Before taking this medicine

You should not use this medicine if you are allergic to hyoscyamine, methenamine, methylene blue, phenyl salicylate, or sodium biphosphate.

During your treatment with this medicine, do not start or stop using any other medications unless your doctor tells you to.

To make sure this medicine is safe for you, tell your doctor if you have:

  • heart disease;
  • a heart rhythm disorder;
  • congestive heart failure;
  • coronary heart disease;
  • a heart valve disorder;
  • glaucoma;
  • an enlarged prostate or bladder obstruction;
  • myasthenia gravis;
  • an ulcer or obstruction in your stomach;
  • an allergy to belladonna (Donnatal and others); or
  • an allergy to salicylates (such as aspirin, choline magnesium trisalicylate, magnesium salicylate).

It is not known whether this medication will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medicine.

This medicine can pass into breast milk and may harm a nursing baby. Tell your doctor if you are breast-feeding a baby.

Do not give this medicine to a child without medical advice.

This section was rewritten for readability and reviewed for meaning.

Side Effects

Get emergency medical help if you notice signs of an allergic reaction: hives; trouble breathing; swelling of your face, lips, tongue, or throat.

This medicine may cause serious side effects. Stop using this medicine and call your doctor right away if you experience:

  • severe dizziness, blurred vision, rapid heart rate;
  • painful or difficult urination; or
  • shortness of breath.

Older adults may be more likely to experience side effects from this medication.

Methylene blue will likely cause your urine or stools to be blue or green. This is a normal side effect of the medication and is not harmful.

Common side effects of Hyolev MB may include:

  • dizziness, drowsiness;
  • dry mouth; or
  • nausea, vomiting.

This is not a full list of side effects, and others may happen. Call your doctor for medical advice about side effects. You can report side effects to the FDA at 1-800-FDA-1088.

This section was rewritten for readability and reviewed for meaning.

What happens if I miss a dose?

Take the missed dose as soon as you remember. If it is almost time for your next scheduled dose, skip the missed dose. Do not take extra medicine to make up for the missed dose.

This section was rewritten for readability and reviewed for meaning.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Do not take an antacid or anti-diarrhea medicine within 1 hour before or after you take hyoscyamine, methenamine, methylene blue, phenyl salicylate, and sodium biphosphate. Antacids or anti-diarrhea medicine can make it harder for your body to absorb hyoscyamine.

If you also take ketoconazole (Nizoral), wait at least 2 hours after taking it before you take hyoscyamine, methenamine, methylene blue, phenyl salicylate, and sodium biphosphate.

This section was rewritten for readability and reviewed for meaning.

What other drugs will affect Hyolev MB?

Many drugs can interact with methylene blue. Tell your doctor about all other medications you use. You may need to stop using certain medicines (in some cases for up to 5 weeks before you start treatment with Hyolev MB). However, do not stop taking any of your medications without your doctor's advice. This includes:

  • any type of antidepressant;
  • diet pills, stimulants, cold or allergy medicines, ADHD medication;
  • narcotic pain medicine;
  • medication to treat Parkinson's disease or restless leg syndrome; or
  • a "triptan" migraine headache medication.

Taking any of the above medications while you are treated with medicine that contains methylene blue can cause high levels of serotonin in the body. Call your doctor right away if you have symptoms of this condition: agitation, hallucinations, fever, fast heart rate, overactive reflexes, nausea, vomiting, diarrhea, loss of coordination, or fainting.

Many drugs can interact with this medicine. Not all possible interactions are listed here. Also, hyoscyamine can make it harder for your body to absorb other medications you take by mouth. Tell your doctor about all your medications and any you start or stop using, especially:

  • a diuretic or "water pill";
  • medicines that change the acidity of your urine--sodium bicarbonate, potassium citrate, sodium citrate with citric acid or potassium;
  • bladder or urinary medicines--darifenacin, fesoterodine, oxybutynin, tolterodine, solifenacin; or
  • a sulfa drug.

This list is not complete and many other drugs can interact with Hyolev MB. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Give a list of all your medicines to any healthcare provider who treats you.

This section was rewritten for readability and reviewed for meaning.

Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
General medicine information Consumer-friendly language

Content is provided for education and is not medical advice. See our medical disclaimer.