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When present, side effects are typically mild and transient, potentially including slight drowsiness if administered too early (easily resolved by timing adjustment), mild headaches during initial adaptation in some individuals (usually resolving within days), temporary vivid dreams as sleep architecture normalizes, or rare reports of mild dizziness upon waking in sensitive individuals

doi: 10.2165/00003495-199448020-00002 Pubmed Abstract CrossRef Google Scholar View reference in article 68 HoxhaBHoxhaMDomiEGervasoniJPersichilliSMalajVet al

They enhance memory by supporting both short- and long-term recall, optimize attention and focus by promoting mental clarity, and improve mood by regulating neurotransmitter activity and stress levels

2014, pp