Uroxatral Side Effects
Generic Name: Alfuzosin
Please note - some side effects for Uroxatral may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).
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For the consumer For the professional
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Side Effects of Uroxatral - for the consumer
Uroxatral
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Uroxatral:
Seek medical attention right away if any of these SEVERE side effects occur when using Uroxatral:Dizziness; drowsiness; headache; stuffy nose.
TopSevere allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); back pain; chest pain; decreased sexual ability; fainting; fast or irregular heartbeat; joint pain; painful, prolonged erection; severe or persistent dizziness; stomach or abdominal pain; unusual fatigue or weakness.
For the professional
Uroxatral
The incidence of treatment-emergent adverse events has been ascertained from 3 placebo-controlled clinical trials involving 1,608 men in which daily doses of 10 and 15 mg alfuzosin were evaluated. In these 3 trials, 473 men received Uroxatral (alfuzosin HCl 10 mg extended-release tablets). In these studies, 4% of patients taking Uroxatral (alfuzosin HCl extended-release tablets) 10 mg tablets withdrew from the study due to adverse events, compared with 3% in the placebo group.
Table 4 summarizes the treatment-emergent adverse events that occurred in ≥2% of patients receiving Uroxatral, and at an incidence numerically higher than that of the placebo group. In general, the adverse events seen in long-term use were similar in type and frequency to the events described below for the 3-month trials.
| Adverse Event | Placebo (n=678) | Uroxatral (n=473) |
|---|---|---|
| Dizziness | 19 (2.8%) | 27 (5.7%) |
| Upper respiratory tract infection | 4 (0.6%) | 14 (3.0%) |
| Headache | 12 (1.8%) | 14 (3.0%) |
| Fatigue | 12 (1.8%) | 13 (2.7%) |
The following adverse events, reported by between 1% and 2% of patients receiving Uroxatral and occurring more frequently than with placebo, are listed alphabetically by body system and by decreasing frequency within body system:
Body as a whole: pain
Gastrointestinal system: abdominal pain, dyspepsia, constipation, nausea
Reproductive system: impotence
Respiratory system: bronchitis, sinusitis, pharyngitis
Signs and Symptoms of Orthostasis in Clinical Studies: The adverse events related to orthostasis that occurred in the double-blind phase 3 studies with alfuzosin 10 mg are summarized in Table 5. Approximately 20% to 30% of patients in these studies were taking antihypertensive medication.
| Symptoms | Placebo (n=678) | Uroxatral (n=473) |
|---|---|---|
| Dizziness | 19 (2.8%) | 27 (5.7%) |
| Hypotension or postural hypotension | 0 | 2 (0.4%) |
| Syncope | 0 | 1 (0.2%) |
Multiple testing for blood pressure changes or orthostatic hypotension was conducted in the three controlled studies at each scheduled clinic visit (Days 14, 28, 56, and 84). Patients with a decrease in systolic blood pressure of >20 mm Hg after 2 minutes standing following being supine were excluded from the three trials. These tests were considered positive for blood pressure decrease if (1) supine systolic blood pressure was ≤90 mm Hg, with a decrease ≥20 mm Hg versus baseline, and/or (2) supine diastolic blood pressure was ≤50 mm Hg, with a decrease≥15 mm Hg versus baseline. The tests were considered positive for orthostatic hypotension if there was a decrease in systolic blood pressure of ≥20 mm Hg upon standing from the supine position during the orthostatic tests. According to these definitions, decreased systolic blood pressure was observed in none of the 674 placebo patients and 1 (0.2%) of the 469 Uroxatral patients. Decreased diastolic blood pressure was observed in 3 (0.4%) of the placebo patients and in 4 (0.9%) of the Uroxatral patients. A positive orthostatic test was seen in 52 (7.7%) of placebo patients and in 31 (6.6%) of the Uroxatral patients.
No vital sign measurements were obtained following first dose administration in the phase 3 studies, except for a subset of patients in study 1 who had blood pressure measurements 12 to 16 hours after the first dose to assess the potential to produce orthostatic hypotension. None of these 35 Uroxatral treated patients showed a positive test for systolic, diastolic or orthostatic blood pressure change.
Post-Marketing Adverse Event Reports
In addition to adverse events reported from clinical trials, the following events have been reported from worldwide post-marketing experience with Uroxatral: rash, urticaria, angioedema, pruritis, rhinitis, tachycardia, chest pain, priapism, diarrhea, flushing, edema, angina pectoris in patients with pre-existing coronary artery disease, hepatocellular injury, cholestatic liver disease.
During cataract surgery, a variant of small pupil syndrome known as Intraoperative Floppy Iris Syndrome (IFIS) has been reported in some patients on or previously treated with alpha-1 blockers.
TopMore resources:
Alfuzosin - Includes detailed dosage instructions.
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