PRECAUTIONS: Tell your doctor your medical history, especially: heart problems (e.g., heart block, heart failure), high or low blood pressure, liver problems, kidney problems, any allergies. This medication is not recommended for use if you have the following medical conditions: nerve disease, spine problems. This drug may make you dizzy or drowsy; use caution engaging in activities requiring alertness such as driving or using machinery. Avoid alcoholic beverages. Depending on how and where this drug is injected into the body, you may experience temporary weakness. To minimize dizziness and lightheadedness, get up slowly when rising from a seated or lying position. Notify your doctor if weakness or problems with muscle control persist. Caution is advised when using this drug in the elderly because they may be more sensitive to the effects of the drug. Caution is advised when using this drug in children because they may be more sensitive to the effects the drug. Tell your doctor if you are pregnant before using this medication. This medication passes into breast milk. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: This drug is not recommended for use with: dofetilide, arbutamine, pimozide, halofantrine. Tell your doctor or pharmacist of all prescription and nonprescription drugs you may use, especially: other anesthetics (e.g., bupivacaine), procainamide, tocainide, cimetidine, beta- blockers (e.g., propranolol, atenolol, metoprolol), amiodarone, mexilitine, succinylcholine, vasopressor drugs (e.g., dobutamine), ergot-type oxytocic (e.g., ergonovine). Tell your doctor if you take drugs that cause drowsiness such as: medicine for sleep, sedatives, tranquilizers, anti-anxiety drugs (e.g., diazepam), narcotic pain relievers (e.g., codeine), psychiatric medicines (e.g., phenothiazines or tricyclics), anti- seizure drugs (e.g., carbamazepine), muscle relaxants, antihistamines that cause drowsiness (e.g., diphenhydramine). Check the labels on all your medicines (e.g., cough-and-cold products) because they may contain drowsiness-causing ingredients. Ask your pharmacist about the safe use of those products. This product can interfere with certain lab tests. Inform laboratory personnel that you are using this medication. Do not start or stop any medicine without doctor or pharmacist approval.

Report Problems to the Food and Drug Administration You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088. Need help identifying pills and medications? Use the pill identifier tool on RxList.