Posted by annemarie (212.238.33.13) on December 23, 2001 at 08:51:05:
In Reply to: Grapefruit Juice ? posted by Frank on December 22, 2001 at 23:02:15:
Frank, look up earlier discussions with the search button!
Briefly, this may happen IF you are taking verapamil for blood pressure/heart problems, not if you take verapamil for clusters only and have no heart/bp problems.
Grapefruit juice influences the bioavalability of verapamil so that it stays longer in the body.
The doctor calculates a dose for your heart/bp problems but the grapefruit throws his calculations off.
If I remember correctly, the Verapamil producers also say you should NOT STOP taking the fruit if you always took it before while taking verapamil.
For that would also influence the dosage.
Annemarie