Lidocaine

What is Lidocaine?

Lidocaine is a common local anesthetic and antiarrhythmic drug. Lidocaine is used topically to relieve itching, burning and pain from skin inflammations, injected as a dental anesthetic or as a local anesthetic for minor surgery.

Questions and answers on "Lidocaine"

will lidocaine ointment - 5% - cause a false positive for cocaine
and'or will an 80% lidocaine product cause a false positive urine analysis for cocaine?

doctor1 MD

Hi,

Thanks for writing to us.

No, Lidocaine ointment 5% will not cause a false positive for cocaine.

Hope this helps. Let me know if you have other concerns.

Take care

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At 10 am I was given Rocephin IM with Lidocaine 2 ml as a pain prevention for the shot. It was not on my electronic medical record that I am allergic to Lidocaine. Within 10 minutes I was given Benedryl IM plus a steroid IM. I have an epi-pen to use if needed. My doctor has also called me at home to make sure am ok. At 4:30 pm still some mild numbness on tongue, back of throat, lips. How long for that 2 ml to work it's way through my system?
Thanks, Christine

doctor1 MD

Hi, welcome to Health care magic forum.
You was given Rocephin and lidocaine I.M. so you had the numb ness of the tongue , lips, and throat is there.
The numbness is not the side effect of the lidocaine , it is the effect of the drug. As it is given I.M.the effect may last for longer time . how...

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Hello, I've been told that I am allergic to lidocaine. When I had a shot of lidocaine mixed with cortisone, my skin turned red and very warm. I'm going to have oral sugery in a few weeks and I told my doctor about my reaction; so he decided to give me a couple of lidocaine shots in my mouth to see if I had any kind of reaction. Well I didn't right then, but a few hours later, my mouth was throbbing and it felt as if all my teeth were going to fall off! Is this normal? Should I ask to be completely put under for oral sugery? As if now the plan is to use lidocaine shots and laughing gas....

doctor1 MD

Hi,

Thanks for asking the query,

Take an antiallergic drug under the prescription of your Physician.
At home take lukewarm saline and antiseptic mouthwash rinses.
Also take a painkiller.

Take care!

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Is it safe to use lidocaine transdermal patch with Congestive Heart Failure

doctor1 MD

Brief Answer:
yes

Detailed Answer:
Hi and welcome.

Generally, Lidocaine patches should not have any affect on heart functioning or contractility so it should not worsen congestive heart failure. If you have any doubts you should ask your cardiologist, but lidocaine in patches is in a very small...

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is it safe to lidocaine hydrochloride on a catheter, and how long does it last?

doctor1 MD

Brief Answer:
It is safe. Effect last for half an hour

Detailed Answer:
Hello Dear. Lidocaine is a local anesthetic. It is used as a jelly while inserting catheter so that the patient doesnot feel pain. The effect may last for half an hour. It is safe. No problem.

Is there anything else you...

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Are lidocaine patches safe for
Pregnancy for sore neck

doctor1 MD

Brief Answer:
Safe in pregnancy.

Detailed Answer:
Thank you for asking

I read your question and i understand your concern. Lidocaine is a local anesthetic and does not penetrate blood. So yes they are very safe in pregnancy even and you can use that for sore neck muscles. However trying from...

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I would like to know under what conditions the Lidocaine Patch 5% is approved by Medicare. I have chronic back pain and have been unsuccessful in getting approval for assistance in payment -

doctor1 MD

Brief Answer:
Not FDA approved

Detailed Answer:
Hi there

Thanks for the query

Lidocaine patch is not yet approved by the FDA so Medicare will not cover this.

I hope I have answered your query.

I will be available to answer your follow up queries.

Regards,

Dr. Aashish Raghu...

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Doctor is a Lidocaine 5% patch effective for low lumbar spine - back -pain? Can it penetrate deep enough to help?

doctor1 MD

Brief Answer:
Yes it should help.

Detailed Answer:
Hi,
Thanks for the query
In a significant number of participants in the clinical trials using local lidocaine (5%) patches there is improvement in the interference of pain leading to better quality of life. This is especially true in moderate to...

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by having diabetes or using 700mg Lidocaine patches, could either produce a false positive for cocaine in UA at dr's office or lab testing for metabolites?

doctor1 MD

Brief Answer:
detailed below.

Detailed Answer:
Hello.

Welcome to Healthcare Magic.

I read carefully your query.

Diabetes doesn't interfere with a urine drug test and it is unlikely to cause a false positive result for cocaine use.Lidocaine patches,has a different structure from cocaine...

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Hello
I am dentist, and I would like to inquire about the effect of lidocaine when a patient has liver disease. Lidocaine is metabolized by liver, and with liver dysfunction, half-life of Lidocaine will be prolonged. Will that lead to Lidocaine toxicity or other systemic condition?

Dr. AJ

doctor1 MD

Dear Dr AJ Hi
Thanks for your query
I appreciate your concern for the safety of Lidocaine in a patient with liver disease.
Lignocaine clearance is reduced in patients with liver disease and appears to be a sensitive index of liver dysfunction.

The average elimination half-life of Lidocaine may be...

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Recent questions on  Lidocaine

doctor1 MD

I have had lidocaine now twice in the past 6 months: once in liquid form for a sore in my mouth and once as a tiny injection for a cyst on my face. Both times, terrible headache. Why? But, over 40 years, I ve had novacaine for dental procedures and never a problem. What s the difference?

doctor1 MD

Chronic back pain requires two/three 750/750 hydro condone a day. I also drink two-three drinks five days a week. Recently I have noticed fatigue, occasional queasiness, and clay colored loose stool. No yellowing of skin or eyes. finger nails still pink. Immediately stopped drinking and Vicodin use. Relying ONLY on ice and lidocaine patches for pain relief. Now on day four. No more queasiness, and exhaustion is subsiding. Clearly I have done some liver damage. First available doctors appt isn t for days. My question is do you think my liver is still reversible based on these symptoms.

doctor1 MD

Hello, my husband has developed a sudden and moderately severe rash (hives?). He has most recently had lidocaine shots and topical ointment. He also has started to take Lipitor and Diovan within the last 2 months. Could the rash be caused by these medications and is it serious? Thank you.

doctor1 MD

Hello doctor... I am 22yrs old for past 1 week i am suffering from anal fissure... Every time i go to toilet it s hard for me to do with pain and little blood but not all the time... Today from my parents advise i took lignocaine hydrochloride gel 2% and Dulcolex for stool softner... How long it will take to heal... Is there any other thing i need to do for healing...

doctor1 MD

I had injections yesterday (12/11/17 at approximately 1:30 p.m.) called facet cervical via medial branch block bilateralc3-c4, bilateral c4-c5 and bilateral c5. The medication used was Lidocaine and Dexamethasone . At 1226 am(12/12/17 I checked my...

doctor1 MD

I think I have nerve pain from shingles . I cannot drive my car for so long without pain from my rear to my left leg to foot what meds do you recommend.

doctor1 MD

Is there a Benadryl -Malox- L:idocaine mouthwash available without prescription?

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