5-Fluoro-MPMI, also known as 5F-MPMI or 5-F-MPMI, is a pyrrolidinylmethylindole and cyclized tryptamine derivative which acts as a serotonin receptor agonist, selective for the 5-HT<sub>2</sub> subtypes but with similar affinity to all three receptors, having strongest activity at 5-HT<sub>2B</sub> and weakest at 5-HT<sub>2A</sub>.
Analogues of MPMI include MPMI, 4-HO-MPMI, and 5-MeO-MPMI, among others.