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Gender Differences in Exercise and Recovery Blood Pressure Responses in Normal Volunteers Given Diltiazem
Author(s) -
Klassen Gerald A.,
Yeung Pollen F. K.,
Barclay Katherine D.,
Hung Orlando R.,
Pollak P. Timothy,
Buckley Susan J.
Publication year - 1995
Publication title -
the journal of clinical pharmacology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 116
eISSN - 1552-4604
pISSN - 0091-2700
DOI - 10.1002/j.1552-4604.1995.tb04039.x
Subject(s) - diltiazem , blood pressure , medicine , heart rate , hemodynamics , haemodynamic response , diastole , cardiology , calcium
This preliminary phase I study was conducted in healthy volunteers to determine whether gender differences exist in the hemodynamic effects of diltiazem at rest, during exercise, and after exercise. At comparable serum concentrations of the drug, women demonstrated lower systolic and diastolic pressure during exercise and after exercise. ST slope after diltiazem administration in women became less positive during exercise and was gender specific. Heart rate and P‐R interval changes were not gender dependent. Results of this study demonstrate that some hemodynamic responses to diltiazem are gender specific while others are not. It indicates that direct comparison studies may be required to detect such differences. In healthy women, hypotension after exercise and the effects of diltiazem are more synergistic than in men. Such a gender difference in response may be an important consideration in determining the correct dosages of this drug for treatment of hypertension.