Absolutely not dangerous. That's why it's a safe plant because you can't actually take so much that it can become really dangerous. I think the lethal dose is in terms of kilo powder and anyway you'd get the woobles which are very unpleasant way before. Woobles include, dizziness, confusion, blurred vision, loss of balance, weakness, eyes impossible to focus... Take a good dose of n acetyl l cysteine and it'll disappear quickly. So unpleasant yes, dangerous not.