Verapamil hydrochloride injection adverse reactions
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Abdurahman Khalil, M.D. [2]
ADVERSE REACTIONS
The following reactions were reported with verapamil hydrochloride injection used in controlled U.S. clinical trials involving 324 patients:
Cardiovascular: Symptomatic hypotension (1.5%); bradycardia (1.2%); severe tachycardia (1.0%). The worldwide experience in open clinical trials in more than 7,900 patients was similar.
Central Nervous System Effects: Dizziness (1.2%); headache (1.2%). Occasional cases of seizures during verapamil injection have been reported.
Gastrointestinal: Nausea (0.9%); abdominal discomfort (0.6%).
In rare cases of hypersensitive patients, broncho/laryngeal spasm accompanied by itch and urticaria has been reported.
The following reactions have been reported at low frequency: emotional depression, rotary nystagmus, sleepiness, vertigo, muscle fatigue, diaphoresis, andrespiratory failure.
- Actual treatment and dosage should depend on the severity of the clinical situation and the judgment and experience of the treating physician.[1]