Selank

How it works

Nasal drops sold for anxiety, built on tuftsin, an immune peptide, and thought to work through GABA, the brain's main brake.

What it's made of

7 amino acids (TKPRPGP): tuftsin, a piece of an antibody that wakes up white blood cells, plus the tail of Semax.

What it's for

Prescribed for

In Russia: anxiety and stress.

Sold as

An anti-anxiety drug “without drowsiness and without addiction.”