Does Sulbutiamine Help Autism at All?

First, what is sulbutiamine? Sulbutiamine is a brand name and a synthetic derivative of vitamin B1, thiamine.

Administration of Large Dose of Sulbutiamine Improves Long-term Memory Formation in Mice

The deficiency of thiamine in beast and man has been seen to produce cognitive disorders and memory dysfunction, which are related to impaired cholinergic activity.
An experiment was conducted to test whether large doses of sulbutiamine could have a positive effect on memory and could induce changes in central cholinergic activity. Mice accordingly got 300mg of sulbutiamine each day for a short period of 10 days. They were then subjected to an appetitive operant level press conditioning test.
When compared to control subjects, sulbutiamine-treated mice learned the task at the same rate in only one session, but demonstrated hugely improved performance when tested 24 hours after partially learning the same task. Similar neurochemical studies showed that sulbutiamine induced 10% but marked increase in hippocampal sodium-dependent unusually good affinity choline uptake. The current findings and earlier results indicate that sulbutiamine improves memory formation.
This makes a lot of sense since vitamin B1 is vital for proper brain function. Some symptoms of vitamin B1 deficiency are paralysis of eye movement muscles, problems with walking and balance.
Often autistic children have diets that are quite deficient in several nutrients, which may be intensified by chronic diarrhea. Vitamin B1 is often recommended for autistic children for its promotion of energy metabolism. Vitamin B1 is additionally recommended for treating neurological disorders. Vitamin B1 could improve appetite, attitude, concentration, and memory.
If you are dead serious about the cause and cure for autism, read this article: How is Chronic Fatigue Syndrome Related to Autism, Asperger's, and Fibromyalgia?