Is paracetamol safe and effective?

Paracetamol: widely used and largely ineffective – Cochrane Library commentary (Free full-text)

Paracetamol for low back pain – Cochrane Library (Link to summary)

The trouble with Tylenol and pregnancy – New York Times commentary (Free)

Association of Acetaminophen Use During Pregnancy With Behavioral Problems in Childhood: Evidence Against Confounding – JAMA Internal Medicine (Link to abstract – $$$ required for full-text)