Methaemoglobinemia Induced by MDMA?

Table 1

Symptoms of methaemoglobinemia.

Methaemoglobin concentration	% Total haemoglobin	Symptoms
<1.5 g/dl	<10	None
1.5–3.0 g/dl	10–20	Cyanotic skin discoloration
3.0–4.5 g/dl	20–30	Anxiety, ligh headedness, headache, and tachycardia
4.5–7.5 g-dl	30–50	Fatigue, confusion, dizziness, tachypnea, and tachycardia
7.5–10.5 g/dl	50–70	Coma, seizures, arrythmias, and acidosis
>10.5 g/dl	>70	Death