HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Can i use neomycin sulfate and polymyxin b sulfate if i'm allergic to bactrim (sulfamethoxazole and trimethoprim)? i know sulfates are different from sulfonamides but wanted to check

A doctor has provided 1 answer

Yes: Those are two different chemicals, so use freely.

Answered 10/6/2017

4.3k views

Thank

Related Questions

A member asked:

I'm allergic to Bactrim (sulfamethoxazole and trimethoprim). Now my neck has a rash and I'm very drowsy after taking doxycycline hyclate. Could I be allergic to it also?

4 doctors weighed in across 3 answers

A member asked:

I have proteus mirabilis. Was given bactrim (sulfamethoxazole and trimethoprim) but i'm allergic to sulfa. So was given amoxcillin 500mg twice a day for 5 days. Is this effective?

A doctor has provided 1 answer

A member asked:

I'm allergic the Bactrim (sulfamethoxazole and trimethoprim), (sulfamethoxazole and trimethoprim) my fianc was just prescribed Bactrim (sulfamethoxazole and trimethoprim) for an infection. Should we refrain for intercourse, since I'm allergic?

4 doctors weighed in across 2 answers

A member asked:

If allergic to Bactrim (sulfamethoxazole and trimethoprim) & Ceclor, is allergy to all sulfa drugs & cephalosporins assumed?

8 doctors weighed in across 2 answers

A member asked:

Does Bactrim (sulfamethoxazole and trimethoprim) have sulfa. I am allergic to sulfa? Which one is better for UTI Keflex or Bactrim (sulfamethoxazole and trimethoprim)

A doctor has provided 1 answer

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

Can I take Tamil flu if I'm allegeric to sulfate products including bactrim (sulfamethoxazole and trimethoprim) ?????
I am allergic to Bactrim, (sulfamethoxazole and trimethoprim) and sulfates, can I take Methocarbamol ?
Allergy to bactrim, (sulfamethoxazole and trimethoprim) I was using an albuterol sulfate inhaler. I have muscle aches, large itchy bumps, and abdominal pain. These two allergies related?
I'm allergic to bactrim (sulfamethoxazole and trimethoprim) n just got prescribed sulfamethoxazole but I have severe shoulder pain and headache, it's an allergic reaction isn't it!
I'm taking Bactrim (sulfamethoxazole and trimethoprim) for a sinus infection because I'm allergic to penicillen. Is this a strong and effective antibiotic?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.