Safety, Side Effects, and Precautions Known Side Effects BPC-157 TB-500 nasal spray is generally well-tolerated, but potential side effects include: Nasal-Specific Mild nasal irritation or dryness Occasional nosebleeds (rare) Temporary altered sense of smell Nasal congestion Systemic Headaches (uncommon) Dizziness (rare) Fatigue or lethargy (temporary) Localized flushing or warmth Most side effects are mild and resolve with continued use or dosage adjustment
There's not enough evidence to show what the effects may be of taking excessive doses of vitamin B12 supplements each day
Candidates for B-12 injections typically include individuals with a vitamin B-12 deficiency, those with certain medical conditions (like pernicious anemia or gastrointestinal disorders), vegetarians or vegans who may not get enough from their diet, or people experiencing fatigue and memory issues potentially linked to low B-12 levels
For recovery enhancement, performance optimisation, or longevity goals in healthy people, until a randomised, placebo-controlled trial in a defined population with an objective primary endpoint and pharmacovigilance over a clinically meaningful duration produces data we do not currently have, we just don't have good evidence of benefit, let alone safety