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Ketamine is used for: Inducing anesthesia (lack of sensation or feeling) before surgery or certain procedures that do not require skeletal muscle relaxation. It may also be used for other conditions as determined by your doctor. Ketamine is an anesthetic. It works in the brain to inhibit painful sensations. DO NOT USE KETAMINE IF: you are allergic to any ingredient in ketamine you have a condition in which a large increase in blood pressure would be harmful you are taking droxidopa Contact your doctor or health care provider right away if any of these apply to you. BEFORE USING KETAMINE: Some medical conditions may interact with ketamine. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you: if you are pregnant, planning to become pregnant, or are breast-feeding if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement if you have allergies to medicines, foods, or other substances if you have a history of head trauma or injury, bleeding in the brain, a stroke, increased spinal fluid pressure, increased pressure in the eye, bladder or urinary problems, heart problems (eg, congestive heart failure), high blood pressure, mental or mood problems, or thyroid problems if you have a history of alcoholism or you are intoxicated by alcohol Some MEDICINES MAY INTERACT with ketamine. Tell your health care provider if you are taking any other medicines, especially any of the following: Amiodarone or droxidopa because serious side effects, such as abnormal heart rhythms, may occur This may not be a complete list of all interactions that may occur. Ask your health care provider if ketamine may interact with other medici... ...sks to your baby. POSSIBLE SIDE EFFECTS OF KETAMINE: All medicines may cause side effects, but many people have no, or minor, side effects.Check with your doctor if any of these most COMMON side effects persist or become bothersome: Loss of appetite; nausea; vomiting. Seek medical attention right away if any of these SEVERE side effects occur: Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); behavior changes; confusion; difficult, frequent, or painful urination; double vision; fainting; fast, slow, or irregular heartbeat; hallucinations; involuntary muscle movements; mental or mood changes (eg, anxiety); pain, redness, or swelling at the injection site; severe or persistent dizziness, light-headedness, or headache; slowed or shallow breathing; uncontrolled eye movements.