nonpoisonous

Several species of nonpoisonous snakes were more common but were nowhere really abundant.

Her second-stage rockets were also of the nonpoisonous variety, because she fired them at a bare 60,000 feet.

(e) The poisonous portions are not distinguishable from the nonpoisonous, either macroscopically or microscopically.

It has the advantage of being comparatively nonpoisonous and noninflammable and is easily transported and handled.