Eletriptan use in specific populations

# Use in Specific Populations

### 8.1 Pregnancy
Pregnancy Category C: There are no adequate and well-controlled studies in pregnant women. In reproductive toxicity studies in pregnant animals, oral administration of eletriptan was associated with developmental toxicity (decreased fetal and pup weights and an increased incidence of fetal structural abnormalities) at clinically relevant plasma exposures. RELPAX should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus
When pregnant rats were administered eletriptan during the period of organogenesis at doses of 10, 30 or 100 mg/kg/day, fetal weights were decreased and the incidences of vertebral and sternebral variations were increased at 100 mg/kg/day (approximately 12 times the maximum recommended human dose  of 80 mg/day on a mg/m2 basis). The 30 and 100 mg/kg/day doses were also maternally toxic, as evidenced by decreased maternal body weight gain during gestation. The no-effect dose for developmental toxicity in rats was 30 mg/kg/day, which is approximately 4 times the MRHD on a mg/m2 basis.
When doses of 5, 10, or 50 mg/kg/day were given to pregnant rabbits throughout organogenesis, fetal weights were decreased at 50 mg/kg/day, which is approximately 12 times the MRHD on a mg/m2 basis. The incidences of fused sternebrae and vena cava deviations were increased at all doses. Maternal toxicity was not evident at any dose. A no-effect dose for developmental toxicity in rabbits was not established; the lowest dose tested (5 mg/kg/day) is similar to the MRHD on a mg/m2 basis.

### 8.3 Nursing Mothers
Eletriptan is excreted in human milk. Caution should be exercised when RELPAX is administered to a nursing woman.

### 8.4 Pediatric Use
Safety and effectiveness in pediatric patients have not been established.
The efficacy of RELPAX Tablets (40 mg) in patients 1117 was not established in a randomized, placebo-controlled trial of 274 adolescent migraineurs . Adverse reactions observed were similar in nature to those reported in clinical trials in adults. Postmarketing experience with other triptans includes a limited number of reports that describe pediatric patients who have experienced clinically serious adverse reactions that are similar in nature to those reported rarely in adults. Long-term safety of eletriptan was studied in 76 adolescent patients who received treatment for up to one year. A similar profile of adverse reactions to that of adults was observed. The long-term safety of eletriptan in pediatric patients has not been established.

### 8.5 Geriatric Use
Blood pressure was increased to a greater extent in elderly subjects than in young subjects. The pharmacokinetic disposition of eletriptan in the elderly is similar to that seen in younger adults . In clinical trials, there were no apparent differences in efficacy or the incidence of adverse reactions between patients under 65 years of age and those 65 and above.

### 8.6 Hepatic Impairment
The effect of severe hepatic impairment on RELPAX metabolism has not been evaluated. RELPAX is not recommended for use in patients with severe hepatic impairment .