What side effects may I notice from receiving Methenamine Mandelate, Sodium Phosphate, Monobasic?

Side effects that you should report to your doctor or health care professional as soon as possible:

-allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
-breathing problems
-bone pain
-confusion
-fast, irregular heartbeat
-pain, tingling or numbness in hands or feet
-tremors
-seizures
-trouble passing urine or change in the amount of urine
-unusually weak or tired

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

-diarrhea
-dizziness
-headache
-nausea
-upset stomach

This list may not describe all possible side effects for Methenamine Mandelate, Sodium Phosphate, Monobasic. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.