English ReferenceCommon (greater than 2% of patients treated with terbinafine tablets) reported adverse events include headache, diarrhea, rash, dyspepsia, liver enzyme abnormalities, pruritus, taste disturbance, nausea, abdominal pain, and flatulence. To report SUSPECTED , contact Aurobindo Pharma USA, Inc. at 1-866-850-2876 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 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. The most frequently reported adverse events observed in the 3 U.S./Canadian placebo-controlled trials are listed in the Table 1. The adverse events reported encompass gastrointestinal symptoms (including diarrhea, dyspepsia, and abdominal pain), liver test abnormalities, rashes, urticaria, pruritus, and taste disturbances. Changes in the ocular lens and retina have been reported following the use of terbinafine tablets in controlled trials. The clinical significance of these changes is unknown. In general, the adverse events were mild, transient, and did not lead to discontinuation from study participation. Table 1. Most frequently reported adverse events observed in the 3 U.S./Canadian placebo-controlled trials Adverse Event Discontinuation Terbinafine Tablets (%) n=465 Placebo (%) n=137 Terbinafine Tablets (%) n=465 Placebo (%) n=137 * Liver enzyme abnormalities greater than or equal to 2 times the upper limit of normal range. Headache 12.9 9.5 0.2 0 Gastrointestinal Symptoms: Diarrhea Dyspepsia Abdominal Pain Nausea Flatulence 5.6 4.3 2.4 2.6 2.2 2.9 2.9 1.5 2.9 2.2 0.6 0.4 0.4 0.2 0 0 0 0 0 0 Dermatological Symptoms: Rash Pruritus Urticaria 5.6 2.8 1.1 2.2 1.5 0 0.9 0.2 0 0.7 0 0 Liver Enzyme Abnormalities* 3.3 1.4 0.2 0 Taste Disturbance 2.8 0.7 0.2 0 Visual Disturbance 1.1 1.5 0.9 0 6.2 Postmarketing Experience The following adverse events have been identified during post-approval use of terbinafine tablets. Because these events are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure....