Generic name: NORGESTIMATE 0.25mg, ETHINYL ESTRADIOL 0.035mg;
Dosage form: tablets
Medically reviewed on July 17, 2017.
How to Start Previfem® (norgestimate/ethinyl estradiol tablets) or Tri-Previfem® (norgestimate/ethinyl estradiol tablets)
Previfem® (norgestimate/ethinyl estradiol tablets USP) and Tri-Previfem® (norgestimate/ethinyl estradiol tablets USP) are dispensed in a blister pack tablet dispenser [see How Supplied/Storage and Handling (16)].
Previfem® (norgestimate/ethinyl estradiol tablets USP) and Tri-Previfem® (norgestimate/ethinyl estradiol tablets USP) may be started using either a Day 1 start or a Sunday start (see Table 1). For the first cycle of a Sunday Start regimen, an additional method of contraception should be used until after the first 7 consecutive days of administration.
How to Take Previfem® or Tri-Previfem®
Starting COCs in women not currently using hormonal contraception (Day 1 Start or Sunday Start)
Day 1 Start:
|Switching to Previfem® or Tri-Previfem® from another oral contraceptive||Start on the same day that a new pack of the previous oral contraceptive would have started.|
|Switching from another contraceptive method to Previfem® or Tri-Previfem®||Start Previfem® or Tri-Previfem® :|
|Complete instructions to facilitate patient counseling on proper tablet usage are located in the FDA-Approved Patient Labeling.|
Starting Previfem® and Tri-Previfem® after Abortion or Miscarriage
- After a first-trimester abortion or miscarriage, Previfem® or Tri-Previfem® may be started immediately. An additional method of contraception is not needed if Previfem® or Tri-Previfem® is started immediately.
- If Previfem® or Tri-Previfem® is not started within 5 days after termination of the pregnancy, the patient should use additional non-hormonal contraception (such as condoms and spermicide) for the first seven days of her first cycle pack of Previfem® or Tri-Previfem®.
- Do not start until 4 weeks after a second-trimester abortion or miscarriage, due to the increased risk of thromboembolic disease. Start Previfem® or Tri-Previfem®, following the instructions in Table 1 for Day 1 or Sunday start, as desired. If using Sunday start, use additional non-hormonal contraception (such as condoms and spermicide) for the first seven days of the patient’s first cycle pack of Previfem® or Tri-Previfem® [see Contraindications (4), Warnings and Precautions (5.1), and FDA-Approved Patient Labeling].
Starting Previfem® or Tri-Previfem® after Childbirth
- Do not start until 4 weeks after delivery, due to the increased risk of thromboembolic disease. Start contraceptive therapy with Previfem® or Tri-Previfem® following the instructions in Table 1 for women not currently using hormonal contraception.
- Previfem® or Tri-Previfem® are not recommended for use in lactating women [see Use in Specific Populations (8.3)].
- If the woman has not yet had a period postpartum, consider the possibility of ovulation and conception occurring prior to use of Previfem® or Tri-Previfem® [see Contraindications (4), Warnings and Precautions (5.1), Use in Specific Populations (8.1 and 8.3), and FDA-Approved Patient Labeling].
Previfem® and Tri-Previfem® come in a blister pack pill dispenser. Read the instructions below for using the blister pack pill dispenser.
The blister package consists of three parts, the calendar label, the sleeve and the blister pack containing 28 individually sealed pills. Note that the pills are arranged in four numbered rows of 7 pills, with the pre-printed days of the week printed above them. Refer to the sample of the blister pack below:
Previfem® consists of 21 blue “active” birth control pills and 7 light green “reminder” pills.
Tri-Previfem® consists of 7 white “active” pills, 7 light-blue “active” pills, 7 blue “active” pills and 7 light green “reminder” pills.
There are two ways to start taking birth-control pills, Sunday Start or Day 1 Start.
How to use Blister Cards for the 28 tablets
1. If Sunday Start, the patient discards the stickers and takes the first active pill on the first Sunday after their menstrual period begins. Due to the potential risk of becoming pregnant, use additional non-hormonal contraception (such as condoms and spermicide) for the first seven days of the patient’s first cycle pack of Previfem® or Tri-Previfem®.
2. If Day 1 Start, the patient picks the Days of the Week Sticker that starts the first day of their period. When the patient has picked the right sticker, they need to throw away the others and place the sticker on the blister card over the preprinted days of the week and make sure it lines up with the pills.
3. The patient removes the first pill by pushing down on the pill and waits 24 hours to take their next pill. The patient continues to take one pill each day until all the pills have been taken.
4. The pill should be taken at the same time each day.
5. After taking the last pill, the patient starts a new blister pack the very next day, no matter when their next period starts.
6. The patient should take the pills in each new package as before and start with the pill on the first row and take one pill each day, left to right, until the last pill has been taken.
||Take the tablet as soon as possible. Continue taking one tablet a day until the pack is finished.|
||Take the two missed tablets as soon as possible and the next two active tablets the next day. Continue taking one tablet a day until the pack is finished. Additional non-hormonal contraception (such as condoms and spermicide) should be used as back-up if the patient has sex within 7 days after missing tablets.|
||Day 1 start: Throw out the rest of the pack and start a new pack that same day.
Sunday start: Continue taking one tablet a day until Sunday, then throw out the rest of the pack and start a new pack that same day. Additional non-hormonal contraception (such as condoms and spermicide) should be used as back-up if the patient has sex within 7 days after missing tablets.
Advice in Case of Gastrointestinal Disturbances
In case of severe vomiting or diarrhea, absorption may not be complete and additional contraceptive measures should be taken. If vomiting or diarrhea occurs within 3 to 4 hours after taking an active tablet, handle this as a missed tablet [see FDA-Approved Patient Labeling].
Tri-Previfem® Use for Acne
The timing of initiation of dosing with Tri-Previfem® for acne should follow the guidelines for use of Tri-Previfem® as an oral contraceptive. Consult the DOSAGE AND ADMINISTRATION section (2.1) for instructions.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about Previfem (ethinyl estradiol / norgestimate)
- Previfem Side Effects
- During Pregnancy
- Drug Images
- Drug Interactions
- Support Group
- Pricing & Coupons
- En Español
- 37 Reviews
- Drug class: contraceptives