Hello dr i am taking phentermine along with hbp pills and furosemide ! i also use preworkout supplements in the morning for my gym workouts is this ok?

Maybe not: B"sd there is always great concern with phentermine as it is a stimulant in the amphetamine family. due caution would be careful attention to any effects on pulse and blood pressure. If by preworkout supps you mean water, should be fine, but they should also be checked out for safety and possible drug interactions. Glad to discuss in more detail.