Medical Specialty >> Pharmacy

Doctors Lounge - Pharmacy Answers

Back to Pharmacy Answers List

If you think you may have a medical emergency, call your doctor or 911 immediately. Doctors Lounge ( does not recommend or endorse any specific tests, physicians, products, procedures, opinions, or other information that may be mentioned on the Site.

DISCLAIMER: The information provided on is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her physician. Please read our 'Terms and Conditions of Use' carefully before using this site.

Date of last update: 9/5/2017.

Forum Name: Pharmacy & Drug Topics

Question: Switching BCP

 katie8977 - Tue Jun 29, 2004 1:57 pm

I am going to be switching to ortho-trycyclen lo from triphasil in a couple of weeks when my current pack comes to an end. I was just wondering if I should go on and start the new pills on the Sunday after my period starts like I would if I were beginning for the first time? Also, do I need to use an alternative birth control method when I switch over since it's a different brand? Thanks!
 Dr. Tamer Fouad - Tue Aug 10, 2004 4:48 am

User avatar Hello,
If you are switching birth control pills wait until you get your menstrual period. If you do not get your period within five days of taking the last active pill, check with your doctor or healthcare professional to be sure that you are not pregnant. Treatment should begin within the first 24 hours of your period. If you do not start the birth control pills within the first 24 hours of your period, you should use non-hormonal back-up contraception for the first 7-14 days of use.

| Check a doctor's response to similar questions

Are you a Doctor, Pharmacist, PA or a Nurse?

Join the Doctors Lounge online medical community

  • Editorial activities: Publish, peer review, edit online articles.

  • Ask a Doctor Teams: Respond to patient questions and discuss challenging presentations with other members.

Doctors Lounge Membership Application

Tools & Services: Follow DoctorsLounge on Twitter Follow us on Twitter | RSS News | Newsletter | Contact us