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

Does antibiotics septra (sulfamethoxazole and trimethoprim) ds tab (g) for a bladder infection or doryx for ance cancel out the birth control larin fe 1/20?

A doctor has provided 1 answer
Dr. John Gaffney answered

Specializes in Psychiatry

Possibly: Antibiotics decrease hormonal contraceptive efficacy. Use with caution ... Hope that helps!

Answered 2/27/2015

3.2k views

Thank

Related Questions

A member asked:

I have some kind of lung infection. My doctor gave me bactrim (sulfamethoxazole and trimethoprim) 800-160 for 10 days and my symptoms persist. Acne on my back and ache in chest on right?

A doctor has provided 1 answer

A member asked:

I just got over an UTI last week.. Or stoped taking septra (sulfamethoxazole and trimethoprim) as recommended.. Now im on my period. Could tht bring bk infection? Im cramping alittle bad

3 doctors weighed in across 2 answers

A member asked:

Can I use septra (sulfamethoxazole and trimethoprim) for any infection?

A doctor has provided 1 answer

A member asked:

Is septra (sulfamethoxazole and trimethoprim) effective against tooth infections?

5 doctors weighed in across 2 answers

A member asked:

What are the side effects of septra (sulfamethoxazole and trimethoprim)?. I have a UTI and thats the antibiotic they gave me. So yeah what are they?. They also gave me pyridium.

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:

If i had one seizure in the past 16 ears and take Dilantin can I take septra (sulfamethoxazole and trimethoprim) for infection or will it cause seizure?
History of UTI. Bladder inf 2 weeks cultured given Bactrim (sulfamethoxazole and trimethoprim). Cleared 1 week. Have another one on Septra not working. Do I need to be off meds 4 recheck?
Can septra (sulfamethoxazole and trimethoprim) ds help infection in your gums and teeth?
Diagnosed with kidney infection. After taking Septra, (sulfamethoxazole and trimethoprim) I developed a sore throat. Should I be worried?
Does septra (sulfamethoxazole and trimethoprim) and pyridium make the infection come out in your discharge also?. I have an UTI and was wondering.

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.