Besha’ah tovah!
We are sorry to hear of the shortage of plain raspberry leaves and appreciate the difficulty it presents. Unfortunately, since alcohol can sometimes be derived from a grain, an extract cannot be used on Pesach without Pesach certification. You should use plain leaves over Pesach, or an extract with a Pesach hechsher.
Assuming all the
pills mentioned are both non-chewable and unflavored, you may continue taking them over Pesach. Such pills are halachically considered inedible and don’t present a problem of
kashrut.
Chag kasher vesameach!