I'm taking 10mg of simvastatin every night, can I take raspberry ketones that contain grapefruit (powder)?

Interesting question. Grapefruit juice can interact and raise simvastain levels. I'm not aware that grapefruit powder has ever been studied. You could try it but be aware that if you get muscle aches, you may need to eliminate the rk or lower the dose of simvastatin. At 18, why are you taking Simvastatin anyway?!