6 ADVERSE REACTIONS NAGS deficiency: Most common adverse reactions (≥13%) are vomiting, abdominal pain, pyrexia, tonsillitis, anemia, diarrhea, ear infection, infections, nasopharyngitis, hemoglobin decreased, and headache. (6.1) To report SUSPECTED ADVERSE REACTIONS, contact Eton Pharmaceuticals, Inc. at 1-855-224-0233, or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Acute and Chronic Hyperammonemia due to NAGS Deficiency In a retrospective case series of 23 NAGS deficiency patients treated with Carglumic acid tablets for oral suspension, 17 of the 23 patients reported an adverse reaction. The most common adverse reactions (occurring in ≥ 13% of patients) were vomiting, abdominal pain, pyrexia, tonsillitis, anemia, diarrhea, ear infection, infections, nasopharyngitis, hemoglobin decreased, and headache. Table 1 summarizes adverse reactions occurring in 2 or more patients treated with Carglumic acid tablets for oral suspension. Table 1: Adverse Reactions Reported in ≥ 2 Patients with NAGS deficiency Treated with Carglumic acid tablets for oral suspension in the Retrospective Case Series Adverse Reaction Number of Patients (N) (%) Vomiting 6 (26) Abdominal pain 4 (17) Pyrexia 4 (17) Tonsillitis 4 (17) Anemia 3 (13) Diarrhea 3 (13) Ear infection 3 (13) Infections 3 (13) Nasopharyngitis 3 (13) Hemoglobin decreased 3 (13) Headache 3 (13) Dysgeusia 2 (9) Asthenia 2 (9) Hyperhidrosis 2 (9) Influenza 2 (9) Pneumonia 2 (9) Weight decreased 2 (9) Anorexia 2 (9) Somnolence 2 (9) Rash 2 (9) 6.2 Postmarketing Experience The following adverse reactions have been identified during postapproval use of Carglumic acid tablets for oral suspension. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or to establish a causal relationship to drug exposure. Psychiatric disorders : mania Skin and subcutaneous tissue disorders : pruritus, rash including rash erythematous, rash maculopapular, rash pustular