Hyoscyamine / methenamine / methylene blue / sodium biphosphate Side Effects
Not all side effects for hyoscyamine / methenamine / methylene blue / sodium biphosphate may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.
Applies to hyoscyamine / methenamine / methylene blue / sodium biphosphate: oral capsule, oral tablet
Methylene blue will most likely cause your urine or stools to appear blue or green in color. This is a normal side effect of the medication and will not cause any harm.
Get emergency medical help if you have any of these signs of an allergic reaction while taking hyoscyamine / methenamine / methylene blue / sodium biphosphate: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Stop using this medicine and call your doctor at once if you have:
severe dizziness, blurred vision, fast heart rate;
agitation, confusion, feeling restless or excited;
painful or difficult urination; or
shortness of breath.
Common side effects may include:
dry mouth; or
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.
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