MSP-Blu Side Effects
Generic Name: hyoscyamine / methenamine / methylene blue / phenyl salicylate
Note: This page contains information about the side effects of hyoscyamine / methenamine / methylene blue / phenyl salicylate. Some of the dosage forms included on this document may not apply to the brand name MSP-Blu.
Applies to hyoscyamine / methenamine / methylene blue / phenyl salicylate: oral tablet, oral tablet enteric coated
In addition to its needed effects, some unwanted effects may be caused by hyoscyamine / methenamine / methylene blue / phenyl salicylate. In the event that any of these side effects do occur, they may require medical attention.
If any of the following side effects occur while taking hyoscyamine / methenamine / methylene blue / phenyl salicylate, check with your doctor or nurse as soon as possible:Less common or rare:
- Blurred vision
- eye pain
- skin rash or hives
- Blood in urine and/or stools
- drowsiness (severe)
- fast heartbeat
- flushing or redness of face
- headache (severe or continuing)
- lower back pain
- pain or burning while urinating
- ringing or buzzing in the ears
- shortness of breath or troubled breathing
- unusual tiredness or weakness
Minor Side Effects
Some of the side effects that can occur with hyoscyamine / methenamine / methylene blue / phenyl salicylate may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:Less common:
- Difficult urination (more common with large doses taken over a prolonged period of time)
- dryness of mouth, nose, or throat
- nausea or vomiting
- stomach upset or pain (more common with large doses taken over a prolonged period of time)
This medicine may cause your urine and/or stools to turn blue or blue-green. This is to be expected while you are taking this medicine.
Not all side effects for MSP-Blu may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.
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