If initial testing is reassuring but blood persists, a urology referral and imaging will usually follow
Lingering or intensifying redness can be indicative of an allergic reaction, particularly if it is accompanied by fevers above 38C, escalating pain, or red streaks emanating from the location
The name itself, derived from the Latin word flavus (meaning yellow or blonde), hints at this distinctive color
Mild and transient gastrointestinal side effects are the most frequently reported effects, occurring in up to a quarter of patients and they include nausea, vomiting, dyspepsia, diarrhea, flatulence and abdominal pain
Nutr Res 29:7074 Scafidi S, Racz J, Hazelton J, McKenna MC, Fiskum G (2010) Neuroprotection by acetyl-l-carnitine after traumatic injury to the immature rat brain