For more information, consult your physician or pharmacist. Call your physician for advice on possible side effects. Before you know how this medication affects you, avoid operating machinery or driving. Injectable: Common side effects of injectable lidocaine include confusion, nervousness, numbness, blurred vision, irregular heartbeat, vomiting, seizures, ringing in the ears, headache, and shivering. Additionally, drowsiness and vertigo are potential side effects of lidocaine. Additionally, the oral solution, gel, and cream formulations of lidocaine as well as the ointment can result in vomiting, convulsions, ringing in the ears, and irregular heartbeat. Lidocaine ophthalmic gel may cause headache or bloodshot eyes. Take a look at the "Lidocaine Precautions" section. Lidocaine has been associated with serious side effects. If any side effect bothers you or does not go away, let your doctor know right away. The negative effects of lidocaine are not all listed here. Topical: Common side effects of topical lidocaine include irritation at the site of application, such as burning, blisters, bruising, redness, or swelling. You may report side effects to the FDA at 1-800-FDA-1088.
Ask your doctor or pharmacist for more information. Tell your doctor right away if you take any of the following medications, which can interact with lidocaine: disopyramide (Norpace), flecainide (Tambocor), mexiletine (Mexitil), moricizine (Ethmozine), procainamide (Procanabid, Pronestyl), propafenone (Rhythmol), quinidine (Quinidex), or tocainide (Tonocard). Inform your doctor about all of the medications you take, including any prescription and over-the-counter drugs, vitamins, and herbal supplements.
Difficulty breathing or swallowing Swelling of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs Hives or skin rash Fast heartbeat Fast breathing Nausea or vomiting Confusion Weakness Fainting Seizures or convulsions Injectable: Serious side effects have been reported with injectable lidocaine including the following: Allergic reactions. Injectable lidocaine may also have effects on the central nervous system, including dizziness, anxiety, blurred or double vision, altered sensations, and changes in respiration. Other symptoms of injection lidocaine include difficulty breathing or swallowing, swelling of the face, throat, tongue, lips, eyes, hands, feet, ankles, or lower legs, hives or skin rash, fast breathing, nausea, vomiting, confusion, weakness, or convulsions. Before you know how lidocaine affects you, avoid driving or using heavy equipment. Those who are allergic to bupivacaine (Marcaine), etidocaine (Duranest), mepivacaine (Carbocaine, Prolocaine), or prilocaine (Citanest) should also avoid taking lidocaine. Those who have Stokes-Adams syndrome or Wolff-Parkinson-White syndrome should also avoid taking injectable lidocaine if they have sinoatrial, atrioventricular, or intraventricular block. The cardiovascular system may also be impacted by injectable lidocaine, which could result in irregular heartbeat, low blood pressure, and cardiac arrest. Dizziness and somnolence are side effects of lidocaine. Tell your healthcare provider right away if you have some or all of the following symptoms of an allergic reaction. Topical: Allergic reactions are just a few of the severe side effects that have been linked to topical lidocaine.