One more thing-even though taking one of these drugs could at most potentially double your exposure to what you normally get, that doesn’t mean it doubles your risk.
Think of it like radiation.
They don’t have a threshold level under which you are safe, or over which you are screwed (excepting concepts like the LD50 dosage (in which 50% of a population exposed at that level may die in 30 days, but...in that other 50%, some may live to the age of 100 with no long term effects)
Just got back from my mom's general care MD. Valsartan is 1 of her drugs. Doc said that pills contain other ingredients in addition to the active drug, e.g., fillers, buffers, and activators. She said the NDMA is used as a drug activator. Toxicologists have always said that most everything under the heavens is toxic at a high enough concentration. 9