Ibuprofen and paracetamol are not effective for pain caused by low blood pressure, including during sodium nitrite overdose. The discomfort in these cases comes from hypoxia, poor tissue perfusion, and ischemia – not from inflammation or fever, which is what these drugs target. While they might slightly dull general discomfort, they don't relieve the root cause like pressure in the head, cramps, or suffocating sensations from oxygen deprivation.
People often take paracetamol/ibuprofen for headaches, so they think, "maybe it helps here too."
But SN-related or low-BP headaches are from lack of oxygen or pressure→ different mechanism = no relief.
In fact, NSAIDs like ibuprofen can even be harmful in low-BP states by reducing kidney perfusion. So in SN overdose or hypotension, paracetamol and ibuprofen are basically useless for the actual pain.
Its just my research and opinion, if you think in your case they would be helpful (even acting like a placebo), go for them. They are not bad or harmful in SN protocol.