The Poisoning caused by gaseous products still frequent, serious and often unrecognized. It represents a real
menace to public health. The prevention is necessary to reduce the severity of this problem. The objective of this study was
to describe the epidemiological, clinical and evolutionary characteristics of patients poisoned by gaseous products.
In The present epidemiological study we collected 380 cases of poisoning reported by provincial delegation of Errachidia,
during a period from 2004 to 2011. The results showed the average age of the intoxicated was 26 ±16years. The poisonings in
this province mainly concerne the adults whose age is between 20 and 74 years (59.04% of cases). The average incidence was
0.85 per 10000 inhabitants. The female patients predominated with 67.10%, the sex ratio (F/M) was 2.04. The frequencies of
the highest poisoning were recorded in the urban area with 92%. The poisonings were accidental in 97.1% of the cases.
Neuro-intestinal symptoms were the most frequent (36.8%), followed by neurological signs (35.5%) and gastrointestinal
(22.1%).