Indications
ME/NaPhos/MB/Hyo 1 Tablets is indicated for the treatment of symptoms of irritative voiding. Indicated for the relief of local symptoms, such as hypermotility which accompany lower urinary tract infections and as antispasmodic. Indicated for the relief of urinary tract symptoms caused by diagnostic procedures.
Warnings and precautions
Do not exceed recommended dosage. If rapid pulse, dizziness, or blurring of vision occurs discontinue use immediately.
Interactions
Drug Interactions because of this product's effect on gastrointestinal motility and gastric emptying, it may decrease the absorption of other oral medications during concurrent use such as: urinary alkalizers; thiazide diuretics (may cause the urine to become alkaline reducing the effectiveness of methenamine by inhibiting its conversion to formaldehyde); antimuscarinics (concurrent use may intensify antimuscarinic effects of hyoscyamine because of secondary antimuscarinic activities of these medications); antacids/antidiarrheals (may reduce absorption of hyoscyamine, concurrent use with antacids may cause urine to become alkaline reducing effectiveness of methenamine by inhibiting its conversion to formaldehyde) doses of these medications should be spaced 1 hour apart from doses of hyoscyamine; antimyasthenics (concurrent use with hyoscyamine may further reduce intestinal motility); ketoconazole (patients should be advised to take this combination at least 2 hours after ketoconazole); monoamine oxidase (MAO) Inhibitors (concurrent use may intensify antimuscarinic side effects, opioid (narcotic) analgesics may result in increased risk of severe constipation); sulfonamides (these drugs may precipitate with formaldehyde in the urine, increasing the danger of crystalluria).
Patients should be advised that the urine may become blue to blue green and the feces may be discolored as a result of the excretion of methylene blue.
Adverse reactions
Cardiovascula r – rapid pulse, flushing Central Nervous System – blurred vision, dizziness Respiratory – shortness of breath or troubled breathing Genitourinary – difficulty micturition, acute urinary retention Gastrointestinal – dry mouth, nausea/vomiting
Official product information
This product has no Drugs@FDA application number in our table. DailyMed holds the labels the manufacturers submit.
Prognia shows this product information for reference and learning. It is not treatment advice and can lag behind the official text. Always check the current product information and local protocols before prescribing.
At a glance
- Brand name
- Me NaPhos MB Hyo 1
- Active substance
- urinary antiseptic antispasmodic
- Application
- LABEL-Me NaPhos MB Hyo 1
- NDC
- 58657-454-01



