Hi doc! my has hypertension & diabetes, she's taking her meds for hypertension&diabetes. can she take a slimming tea that contains senna leaves &pods?

Senna: Senna sometimes used as a laxative, but when it is used on a chronic basis can cause a condition called melanosis coli. If constipation is an issue, it is better to increase the amount of fiber in the diet and even consider a fiber supplement. You should increase fluid intake if you increase fiber intake. This would be better than chronic senna usage. Good luck.