What are the possible side effects of lidocaine patches?


Quick Answer

Possible side effects of lidocaine patches include lightheadedness, dizziness, fainting and blurred vision. Chest pain, itching, nervousness and clammy, pale or cold skin may also occur. Other possible side effects include cough, confusion, a lack of blood pressure or pulse, and hives or welts, according to Drugs.com.

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Full Answer

Possible side effects of lidocaine patches include irregular heartbeat, mood shifts, redness of the skin and seizures. Weakness, wheezing, sleepiness and skin rash may also occur. A person may experience shaky feet, legs, arms or hands after using lidocaine patches. Lidocaine patches may cause fingernails, lips or skin to turn blue or pale. Lidocaine patches may cause sudden tiredness or weakness, swelling or itching, states Drugs.com.

It is possible for a fatal overdose to occur with lidocaine. This happens most often when lidocaine is used with a numbing agent without the supervision of a physician. Signs of an overdose include seizures, slowed breathing, stopped breathing, coma and uneven heartbeats. Lidocaine patches should only be used as directed, notes Drugs.com

Many people do not experience side effects when using lidocaine patches. Some side effects may not require medical attention, and the body may need to adjust to new medicine for the symptoms to subside. Some side effects may be preventable. A person should speak to a physician if he is experiencing side effects after using lidocaine patches, states Drugs.com.

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