Adverse Event Profile: L Theanine

Source: FDA Center for Food Safety and Applied Nutrition (CFSAN) Adverse Event Reporting System Total Events: 5 Serious Events: 1 Date Range: 20170207 to 20241115

Top Reported Reactions

  • Fatigue: 2
  • Anxiety: 1
  • Autonomic neuropathy: 1
  • Constipation: 1
  • Dizziness: 1
  • Feeling cold: 1
  • Hypoaesthesia: 1
  • Hypotension: 1
  • Insomnia: 1
  • Rosacea: 1
  • Skin burning sensation: 1
  • Syncope: 1
  • Tremor: 1
  • Alopecia: 1
  • Pulmonary oedema: 1
  • Rash pruritic: 1
  • Throat tightness: 1
  • Urticaria: 1
  • Abdominal distension: 1
  • Abdominal pain upper: 1

Outcomes

  • Other Serious or Important Medical Event: 4
  • Disability: 1
  • Other Serious Outcome: 1

Products Involved (4 unique)

  • DOCTOR'S BEST L-THEANINE WITH SUNTHEANINE
  • L-THEANINE
  • L-Theanine
  • L-theanine

Disclaimer

This data is from the FDA CAERS database. A report does not mean the supplement caused the adverse event. Reports may be incomplete, duplicated, or unrelated. This is for safety awareness only.