Applies to flavoxate: oral tablet.
Serious side effects of Flavoxate
Along with its needed effects, flavoxate may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor as soon as possible if any of the following side effects occur while taking flavoxate:
Rare
- Confusion
- eye pain
- skin rash or hives
- sore throat and fever
Symptoms of overdose
- Clumsiness or unsteadiness
- dizziness (severe)
- drowsiness (severe)
- fever
- flushing or redness of face
- hallucinations (seeing, hearing, or feeling things that are not there)
- shortness of breath or troubled breathing
- unusual excitement, nervousness, restlessness, or irritability
Other side effects of Flavoxate
Some side effects of flavoxate may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.
Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common
- Drowsiness
- dryness of mouth and throat
Less common or rare
- Blurred vision
- constipation
- difficult urination
- difficulty concentrating
- dizziness
- fast heartbeat
- headache
- increased sensitivity of eyes to light
- increased sweating
- nausea or vomiting
- nervousness
- stomach pain
For Healthcare Professionals
Applies to flavoxate: oral tablet.
General
Side effects have been reported, however, there is not enough data to support an estimate of their frequency.[Ref]
Cardiovascular
Frequency not reported: Tachycardia, palpitation[Ref]
Gastrointestinal
Frequency not reported: Nausea, vomiting, dry mouth, diarrhea, dyspepsia, dysphagia[Ref]
Ocular
Frequency not reported: Ocular tension increased, blurred vision, eye accommodation disturbed[Ref]
Nervous system
Frequency not reported: Headache, drowsiness, dizziness[Ref]
Hematologic
Frequency not reported: Leukopenia, eosinophilia[Ref]
Immunologic
Frequency not reported: Hypersensitivity reaction[Ref]
Psychiatric
Frequency not reported: Confusion, nervousness[Ref]
Genitourinary
Frequency not reported: Dysuria[Ref]
Other
Frequency not reported: Vertigo, hyperpyrexia, fatigue[Ref]
Dermatologic
Frequency not reported: Urticaria, dermatoses, angioedema, erythema, rash, pruritus[Ref]
