Eletriptan Hydrobromide (Page 2 of 6)

5.8 Increase in Blood Pressure

Significant elevation in blood pressure, including hypertensive crisis with acute impairment of organ systems, has been reported on rare occasions in patients treated with 5-HT1 agonists, including patients without a history of hypertension. Monitor blood pressure in patients treated with eletriptan hydrobromide. Eletriptan hydrobromide is contraindicated in patients with uncontrolled hypertension [see Contraindications (4)].

5.9 Anaphylactic/Anaphylactoid Reactions

There have been reports of anaphylaxis, anaphylactoid, and hypersensitivity reactions including angioedema in patients receiving eletriptan hydrobromide. Such reactions can be life threatening or fatal. In general, anaphylactic reactions to drugs are more likely to occur in individuals with a history of sensitivity to multiple allergens. Eletriptan hydrobromide is contraindicated in patients with a history of hypersensitivity reaction to eletriptan hydrobromide [see Contraindications (4)].

6 ADVERSE REACTIONS

The following adverse reactions are described elsewhere in other sections of the prescribing information:

6.1 Clinical Trials Experience

Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in practice.

Among 4,597 patients who treated the first migraine headache with eletriptan hydrobromide in short-term placebo-controlled trials, the most common adverse reactions reported with treatment with eletriptan hydrobromide were asthenia, nausea, dizziness, and somnolence. These reactions appear to be dose-related.

In long-term open-label studies where patients were allowed to treat multiple migraine attacks for up to 1 year, 128 (8.3%) out of 1,544 patients discontinued treatment due to adverse reactions.

Table 1 lists adverse reactions that occurred in the subset of 5,125 migraineurs who received eletriptan doses of 20 mg, 40 mg and 80 mg or placebo in worldwide placebo-controlled clinical trials.

Only adverse reactions that were more frequent in a eletriptan hydrobromide treatment group compared to the placebo group with an incidence greater than or equal to 2% are included in Table 1.

Table 1: Adverse Reactions Incidence in Placebo-Controlled Migraine Clinical Trials: Reactions Reported by ≥ 2% Patients Treated with Eletriptan Hydrobromide and More Than Placebo
Adverse Reaction Type Placebo (n=988) Eletriptan Hydrobromide 20 mg (n=431) Eletriptan Hydrobromide 40 mg (n=1774) Eletriptan Hydrobromide 80 mg (n=1932)
ATYPICAL SENSATIONS
Paresthesia 2% 3% 3% 4%
Flushing/feeling of warmth 2% 2% 2% 2%
PAIN AND PRESSURE SENSATIONS
Chest – tightness/pain/pressure 1% 1% 2% 4%
Abdominal – pain/discomfort/stomach pain/ cramps/pressure 1% 1% 2% 2%
DIGESTIVE
Dry mouth 2% 2% 3% 4%
Dyspepsia 1% 1% 2% 2%
Dysphagia-throat tightness/difficulty swallowing 0.2% 1% 2% 2%
Nausea 5% 4% 5% 8%
NEUROLOGICAL
Dizziness 3% 3% 6% 7%
Somnolence 4% 3% 6% 7%
Headache 3% 4% 3% 4%
OTHER
Asthenia 3% 4% 5% 10%

The frequency of adverse reactions in clinical trials did not increase when up to 2 doses of eletriptan hydrobromide were taken within 24 hours. The incidence of adverse reactions in controlled clinical trials was not affected by gender, age, or race of the patients. Adverse reaction frequencies were also unchanged by concomitant use of drugs commonly taken for migraine prophylaxis (e.g., SSRIs, beta blockers, calcium channel blockers, tricyclic antidepressants), estrogen replacement therapy or oral contraceptives.

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