Here is some reading and background information concerning ALS and medical marijuana. Please note some of these may not be the latest information but are included to offer a wide range of sources and opinions, they do not constitute medical advice, and in almost every case more research is needed before there is certainty.
ALS (AMYOTROPHIC LATERAL SCLEROSIS) Projectcbd.org
Is Medical Marijuana the Solution for ALS?
Sativex Helps ALS, PLS Spasticity in Mid-Stage Trial