Agitation; constipation; diarrhea; dizziness; headache; indigestion; nausea; pain; swelling or redness at the injection site; sleeplessness; vomiting. Severe allergic reactions (rash; hives; itching; difficulty of breathing; lightness in the chest; swelling of the mouth, face, lips, or tongue); bloody stools; chest pain; decreased urination; depression; fainting; fast, slow or irregular heartbeat; fever; chills or sore throat; hallucination; inflammation at the injection site; prolonged muscle relaxation; red, swollen or blistered skin; seizure; severe diarrhea, vomiting, or stomach pain; shortness of breath; swelling of the hands, ankles, or feet; tremor; unusual tiredness or weakness; vaginal irritation or discharge; vein inflammation or tenderness; yellowing of the eyes or skin.