No the drinking of grapefruit juice can not cause stroke or seizure .
yes
Grapefruit juice may increase the effects of some calcium channel blockers.
Plain lemon juice is a fruit juice, albeit rather acidic like grapefruit juice. It does not count as water. Sucking on lemons can actually deteriorate the enamel of ones teeth. The benefits are very similar to grapefruit juice.
No, the syngergistic effect is exclusive to grapefruit juice. Grapefruit juice is broken down by the same enzyme in the stomach as benzodiazepines, so more of the drug enters your bloodstream if your stomach is "busy" breaking down the grapefruit juice.
Studies up to now show that the juice and the fruit have both a significant interaction with some drugs (including lipitor).
According to the pharmacist at our local drugstore, he said you can eat a grapefruit, but he does not recommend drinking grapefruit juice because it would be too concentrated.
You can drink grape juice when taking theophylline. What you should not drink is grapefruit juice. This is because grapefruit juice can decreae the effects of taking theophylline. However, at this time, it has not been determined how serious this effect is.
Sprite does not have grapefruit juice. There is a grapefruit juice which has sprite in it. You can add sprite to nearly any drink to make a spritzer.
Unlike Calcium Channel Blockers, which effects get enhanced by grapefruit juice, Beta Blockers (Tenormin) absorption from the gut decreases when taken with grapefruit juice. Researchers have found that grapefruit (whole or juice) inhibits certain enzymes in the intestinal mucosa responsible for Tenormin absorption. Therefore it is advised to avoid consuming grapefruit few hours before and after taking Tenormin to assure full absorption of the therapeutic dose of the drug by the gut.
No. Some medications give instructions not to have grapefruit juice with the medicine. I know statins are explicit about not having grapefruit juice.
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