Ustell Side Effects

Generic name: hyoscyamine / methenamine / methylene blue / phenyl salicylate

Note: This document contains side effect information about hyoscyamine / methenamine / methylene blue / phenyl salicylate. Some of the dosage forms listed on this page may not apply to the brand name Ustell.

Some side effects of Ustell may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

Applies to hyoscyamine / methenamine / methylene blue / phenyl salicylate: oral capsule, oral delayed release tablet, 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 / phenyl salicylate: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using this medication 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

• feeling short of breath.

Common side effects may include:

• mild dizziness;

• drowsiness; or

• flushing (warmth, redness, or tingly feeling).

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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