Savatex is a spray, you spray it under your tongue and its absorbed by the thick blood vessels under the tongue
Marinol is a pill. I hear pro's and con's about the pill. Most folks say its about 25% strength of what a normal tiny joint would be. It takes at least 3 to get anywhere close to the benefit felt by a small joint.
I used to indulged in my teenage years, but have spent my career as a prison nurse, and encouraging others to lay it down. I was gifted some brownies, and was too chicken to eat them.