The short version
Usually not a concern
- Penicillins, amoxicillin, most antibiotics for routine infections
- A short course for something like a UTI, sinus or dental infection
Worth flagging to your injector
- Aminoglycoside antibiotics specifically
- Any antibiotic you are taking, even if you are not sure which category it falls into
The antibiotic class that actually matters
Most antibiotics have no meaningful interaction with Botox. The one category worth knowing about specifically is aminoglycosides – gentamicin, tobramycin, neomycin and streptomycin are the most commonly prescribed examples. These antibiotics have some mild neuromuscular blocking activity of their own, separate from what they are prescribed to treat. Taken around the same time as Botox, there is a theoretical possibility of an enhanced or prolonged effect, since both are acting on the same neuromuscular pathway to some degree.
This is a known, documented interaction that is listed in prescribing information for botulinum toxin products – it is not a fringe concern, but it is also not common, since aminoglycosides are not typically first-choice antibiotics for routine infections.
The antibiotics people usually mean when they ask this
If you have been prescribed something for a urinary tract infection, a sinus infection, a dental infection, or a general bacterial infection, it is very likely a penicillin, cephalosporin, or similar class with no known interaction of this kind. The concern specifically applies to aminoglycosides, which are more commonly used for serious infections, often given intravenously in a hospital setting, rather than a standard oral course for something minor.
What to actually do about it
Tell your injector about any medication you are currently taking, antibiotics included, as a standard part of your consultation – not because most of them matter for this specific interaction, but because it is the only way to catch the ones that do. If you are on an aminoglycoside specifically, that is worth a conversation about timing between your injector and the doctor who prescribed it, rather than a decision to make on your own.
For a minor, short course of a routine antibiotic unrelated to the aminoglycoside class, there is generally no reason to delay treatment. If you are ever unsure which category your prescription falls into, ask your pharmacist or simply mention the medication name at your appointment.
Questions people ask
Can I get Botox while taking antibiotics?
For most antibiotics, yes. The specific concern is the aminoglycoside class, which has its own mild neuromuscular effect that could theoretically enhance Botox’s action.
What are aminoglycoside antibiotics?
A class that includes gentamicin, tobramycin, neomycin and streptomycin, more commonly used for serious infections than routine ones.
Do I need to stop my antibiotics before getting Botox?
No, and you should never stop a prescribed antibiotic course early without talking to the prescribing doctor. Mention the medication to your injector instead, and let them advise on timing if needed.
Is amoxicillin safe with Botox?
Amoxicillin is a penicillin, not an aminoglycoside, and has no known interaction of this kind.
Currently on a prescription and not sure if it matters?
A nurse practitioner-led practice in Scottsdale, Arizona. Bring your medication list to your consultation.
