Drug

L-tryptophan

19 flagged reaction(s) · 181 total co-reports · max PRR 74.9

Important: Reactions below are the flagged terms from this drug’s FAERS report history (min. 3 co-reports per term) — PRR/ROR indicate disproportionality in spontaneous reporting, not causation. Data from FDA FAERS via openFDA. Last recalculated: 2026-09-14.

	Reaction	Co-reports (a)	PRR	ROR	Signal
1	Serotonin Syndrome	29	74.9	80.3	signal
2	Product Use Complaint	18	57.4	59.9	signal
3	Taste Disorder	18	44.4	46.3	signal
4	Blood Calcium Decreased	8	35.0	35.7	signal
5	Rebound Effect	8	34.8	35.5	signal
6	Inappropriate Antidiuretic Hormone Secretion	7	33.9	34.5	signal
7	Personality Change	5	26.4	26.7	signal
8	Akathisia	6	21.7	22.0	signal
9	Inflammatory Bowel Disease	4	20.1	20.2	signal
10	Therapy Partial Responder	6	19.7	19.9	signal
11	Contraindicated Product Administered	12	19.6	20.2	signal
12	Disturbance In Attention	21	19.2	20.1	signal
13	Neuroleptic Malignant Syndrome	4	16.6	16.7	signal
14	Sedation	8	15.1	15.4	signal
15	Drug Toxicity	4	14.3	14.4	signal
16	Libido Decreased	3	11.9	12.0	signal
17	Poisoning	3	11.7	11.8	signal
18	Withdrawal Syndrome	7	8.2	8.3	signal
19	Drug Abuse	10	5.9	6.0	signal