This is unfortunate, as male funnel webs tend to roam about, particularly after heavy rain in summer, and often wind up indoors. The primary toxic component is atraxotoxin, which alone can cause all the symptoms. Atraxotoxin causes acute massive release of neurotransmitters at autonomic and neuromuscular junctions with associated uncontrolled autonomic hyper-reactivity and muscle twitching, followed about 2 hours later by neurotransmitter depletion and weakness. The bite is usually immediately painful, and if substantial envenomation occurs, symptoms commence usually within a few minutes. After about 2 hours the muscle fasiculations and most symptoms start to subside, and are replaced with insidious but profound hypotension, primarily due to severe cardiac failure.
Any delay risks the rapid onset of systemic symptoms.
There have been no reports of deaths when effective first aid had been instituted. The patient should immediately be evacuated to a medical facility capable of managing the envenomation. Treatment will require giving antivenom, providing artificial ventilation, and invasively monitoring the patient. Bandages MUST NOT be removed prematurely. There is evidence that the venom may inactivated by prolonged localisation.