Symptoms may include headache, nausea, or vomiting. Symptoms include dizziness, weakness, excessive perspiration, nausea, and vomiting. Other symptoms include fever, nausea, and vomiting. Common side effects include dizziness, sleepiness, nausea, and constipation. Other common systemic symptoms include nausea and vomiting, diaphoresis (sweating), and abdominal pain. Migraines are often unilateral, pulsing headaches accompanied by nausea or vomiting. Gastrointestinal infection is one of the most common causes of acute nausea and vomiting. It also reduces postoperative shivering, postoperative nausea and vomiting, and emergence delirium. There is often associated nausea and vomiting. Common side effects include diarrhea, nausea, and abdominal pain. Common side effects include daytime sleepiness, headache, nausea, and diarrhea. Evidence that ginger helps alleviate nausea and vomiting resulting from chemotherapy or pregnancy is inconsistent. Antiemetics are sometimes necessary to suppress nausea and vomiting. Alprazolam may be used in combination with other medications for chemotherapy-induced nausea and vomiting. The acute phase consists of abdominal pain with associated nausea and diarrhea.