pentawinSide Effects of Pentawin are Dizziness, Vomiting, Nausea, Euphoria (feeling of intense excitement and happiness), Injection site reactions (pain, swelling, redness). How Pentawin ProductsPentawin 30 mg Injection is a potent analgesic medicine used in the treatment of moderate to severe pain for which alternative treatments are inadequate. This medicine is also used as a