Why Does Botox Adverse Side Effects Say Flulike Symptoms, Fuzzy Vision, Hoarseness Etc?

No one wants to answer questions but it is clearly stated. I figure all of these injections could have these side effects including per lane. Can an injection be given too deeply and get into body to cause these awful results?

Doctor Answers 6

Flu and Headache from Botox?

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In large scale studies ( thousands of patients) especially depending on the season, it is inevitable that a certain number of the participants will experience flu, sore throat, headaches etc.  If the number exceeds 3%, the FDA mandates those symptoms must be included in the package insert, whether or not it is clear there is a cause and effect relationship to the treatment.

Miami Dermatologic Surgeon

Botox side effects

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When doing clinical studies, anything reported as a side effect gets listed on the FDA's paperwork for any type of injectable, medication, etc. That's why the paperwork with all of these are sooooo long. If you look at a bottle of Advil or Tylenol you will see many of the same possible side effects. With cosmetic injections by experienced physicians, the side effects most common are small bruises or redness.

Why Do Botox Adverse Side Effects Say Flulike Symptoms, Fuzzy Vision, Hoarseness Etc?

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    Any symptomatology must be reported even vague, nonspecific, or impossible to confirm or substantiate claims.  




Kenneth Hughes, MD Los Angeles, CA

Why Are Botox Side Effects Listed?

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All of the possible side effects of Botox and other injectables are listed because we live in a society dominated by medical-legal lawsuits.  Both the pharmaceutical companies and physicians must protect themselves by providing patients with informed consent of all possible adverse reactions, many times from the smallest bruise up to and including death.  Fortunately, the more severe side effects are extremely rare.  Good luck and be well.

Dr. P

Michael A. Persky, MD
Encino Facial Plastic Surgeon
4.8 out of 5 stars 39 reviews

Adverse effects of botox

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Some of the adverse effects that are listed can be directly related to the injection of Botox in certain areas  while others might have been reported to have happened during clinical trials of the drug. If they were reported enough they might have been statistically significant enough to be listed. All that being said, with the amount that you would have injected for wrinkling you would not be expected to have much of a chance of having this happen. However, as anything is possible, we need to alert out patients to all possibilities. 

Jo Herzog, MD
Birmingham Dermatologist
4.8 out of 5 stars 20 reviews

Botox and side effects

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Side effects to cosmetic Botox injections aren't common...typically the only thing people experience is some mild swelling directly after the procedure and occasionally bruising can happen at the injection site. When reading about side-effects you'll notice the incidence is quite low and not at all the norm.

Sam Naficy, MD, FACS
Seattle Facial Plastic Surgeon
4.7 out of 5 stars 231 reviews

These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.