Hydroxytryptamine (hydroxy-T, HT, HO-T, or OH-T) may refer to:
- 1-Hydroxytryptamine
- 2-Hydroxytryptamine
- 4-Hydroxytryptamine
- 5-Hydroxytryptamine (5-HT; serotonin)
- 6-Hydroxytryptamine
- 7-Hydroxytryptamine
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Last revised Jun 18, 2026
Hydroxytryptamine
Hydroxytryptamine may refer to:1-Hydroxytryptamine 2-Hydroxytryptamine 4-Hydroxytryptamine 5-Hydroxytryptamine 6-Hydroxytryptamine 7-Hydroxytryptamine