FDA Issues Fresh Warnings About Neptune’s Fix and the Substance Tianeptine

Products under the brand name Neptune’s Fix have been linked to severe side effects such as seizures, loss of consciousness, and should be avoided the FDA says.

Medical syringes with the FDA logo displayed in the background in Krakow, Poland, on Dec. 2, 2021. Jakub Porzycki/NurPhoto via Getty Images

Consumers have been given a fresh warning by the Food and Drug Administration (FDA) to avoid using a product marketed as a supplement, Neptune’s Fix, because it contains tianeptine, a potentially dangerous substance linked to dangerous side effects.

Also known as gas station heroin, the FDA warns in a Jan. 23 alert that products under the brand name Neptune’s Fix have been linked to seizures, loss of consciousness and, in some extreme cases, hospitalization. It is sold at gas stations, convenience stores, vape shops and online.