- Positive effects include mood elevation, increase in tactile sensation, mild hallucinations and, in higher dosages, closed-eye visuals and dissociation of mind and body may occur.
- Panic attacks are a common side effect. In some cases, symptoms of psychosis and/or mania may surface.
- Cardiovascular effects are common, including high blood pressure and increased heart rate. In severe cases, a stroke can occur.
- Nausea, vomiting and upset stomach are common side effects of Coricidin misuse. These side effects, while unpleasant, are not fatal.
- Coricidin also contains chlorpheniramine maleate, an antihistamine that can cause seizures, vaginal and rectal bleeding and loss of consciousness, and in severe cases can result in death.
- Taking certain antidepressants, including SSRIs (such as Prozac, Paxil or Celexa) and MAOIs can result in serotonin syndrome, a serious condition that occurs due to an excess of serotonin. Symptoms include muscle rigidity, fever, agitation, and in severe cases, coma or death.










