Pheneticillin (or phenethicillin) is a

penicillin Penicillins (P, PCN or PEN) are a group of beta-lactam antibiotic, β-lactam antibiotics originally obtained from ''Penicillium'' Mold (fungus), moulds, principally ''Penicillium chrysogenum, P. chrysogenum'' and ''Penicillium rubens, P. ru ...

. It is not approved by the FDA for use in the United States.

References

* * Penicillins {{antibiotic-stub