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Uses
SyedaTM(drospirenone and ethinyl estradiol tablets, USP) are indicated for use by women to prevent pregnancy.
History
There is currently no drug history available for this drug.
Other Information
SyedaTM (drospirenone and ethinyl estradiol tablets, USP) provide an oral contraceptive regimen consisting of 28 film-coated tablets that contain the ingredients specified for each tablet below:
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- 21 yellow tablets each containing 3 mg drospirenone and 0.03 mg ethinyl estradiol
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- 7 inert white tablets
The inactive ingredients are corn starch, crospovidone (Polyplasdone XL), crosspovidone (Polyplasdone XL-10), lactose fast flo, macrogol/PEG 3350, magnesium stearate vegetable (kemilub em-f-v), polysorbate 80 (tween 80), polyvinyl alcohol-part. hydrolyzed, povidone k-30 (kollidon K-30), pregelatinized starch (sepistab ST200), talc and titanium dioxide. In addition, each active tablet contains yellow iron oxide.
Drospirenone (6R,7R,8R,9S,10R,13S,14S,15S,16S,17S)-1,3',4',6,6a,7,8,9,10,11,12,13, 14,15,15a,16-hexadecahydro-10,13-dimethylspiro-[17H-dicyclopropa-[6,7:15,16] cyclopenta[a]phenanthrene-17,2'(5H)-furan]-3,5'(2H)-dione) is a synthetic progestational compound and has a molecular weight of 366.5 and a molecular formula of C24H30O3.
Ethinyl estradiol (19-nor-17α-pregna 1,3,5(10)-triene-20-yne-3,17-diol) is a synthetic estrogenic compound and has a molecular weight of 296.4 and a molecular formula of C20H24O2.
The structural formulas are as follows:
Sources
Syeda Manufacturers
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Sandoz Inc
Syeda | Sandoz Inc
2.1 How to Take SyedaTMTake one tablet by mouth at the same time every day. The failure rate may increase when pills are missed or taken incorrectly.
To achieve maximum contraceptive effectiveness, SyedaTM must be taken as directed, in the order directed on the blister pack. Single missed pills should be taken as soon as remembered.
2.2 How to Start SyedaTMInstruct the patient to begin taking SyedaTM either on the first day of her menstrual period (Day 1 Start) or on the first Sunday after the onset of her menstrual period (Sunday Start).
Day 1 Start
During the first cycle of SyedaTM use, instruct the patient to take one yellow SyedaTM daily, beginning on Day 1 of her menstrual cycle. (The first day of menstruation is Day 1.) She should take one yellow SyedaTM daily for 21 consecutive days, followed by one white tablet daily on Days 22 through 28. SyedaTM should be taken in the order directed on the package at the same time each day, preferably after the evening meal or at bedtime with some liquid, as needed. SyedaTM can be taken without regard to meals. If SyedaTM is first taken later than the first day of the menstrual cycle, SyedaTM should not be considered effective as a contraceptive until after the first 7 consecutive days of product administration. Instruct the patient to use a non-hormonal contraceptive as back-up during the first 7 days. The possibility of ovulation and conception prior to initiation of medication should be considered.
Sunday Start
During the first cycle of SyedaTM use, instruct the patient to take one yellow SyedaTM daily, beginning on the first Sunday after the onset of her menstrual period. She should take one yellow SyedaTMdaily for 21 consecutive days, followed by one white tablet daily on Days 22 through 28. SyedaTM should be taken in the order directed on the package at the same time each day, preferably after the evening meal or at bedtime with some liquid, as needed. SyedaTM can be taken without regard to meals. SyedaTM should not be considered effective as a contraceptive until after the first 7 consecutive days of product administration. Instruct the patient to use a non-hormonal contraceptive as back-up during the first 7 days. The possibility of ovulation and conception prior to initiation of medication should be considered.
The patient should begin her next and all subsequent 28-day regimens of SyedaTM on the same day of the week that she began her first regimen, following the same schedule. She should begin taking her yellow tablets on the next day after ingestion of the last white tablet, regardless of whether or not a menstrual period has occurred or is still in progress. Anytime a subsequent cycle of SyedaTM is started later than the day following administration of the last white tablet, the patient should use another method of contraception until she has taken a yellow SyedaTM daily for seven consecutive days.
When switching from a different birth control pill
When switching from another birth control pill, SyedaTM should be started on the same day that a new pack of the previous oral contraceptive would have been started.
When switching from a method other than a birth control pill
When switching from a transdermal patch or vaginal ring, SyedaTMshould be started when the next application would have been due. When switching from an injection, SyedaTM should be started when the next dose would have been due. When switching from an intrauterine contraceptive or an implant, SyedaTMshould be started on the day of removal.
Withdrawal bleeding usually occurs within 3 days following the last yellow tablet. If spotting or breakthrough bleeding occurs while taking SyedaTM, instruct the patient to continue taking SyedaTM by the regimen described above. Counsel her that this type of bleeding is usually transient and without significance; however, advise her that if the bleeding is persistent or prolonged, she should consult her healthcare provider.
Although the occurrence of pregnancy is low if SyedaTM is taken according to directions, if withdrawal bleeding does not occur, consider the possibility of pregnancy. If the patient has not adhered to the prescribed dosing schedule (missed one or more active tablets or started taking them on a day later than she should have), consider the possibility of pregnancy at the time of the first missed period and take appropriate diagnostic measures. If the patient has adhered to the prescribed regimen and misses two consecutive periods, rule out pregnancy. Discontinue SyedaTM if pregnancy is confirmed.
The risk of pregnancy increases with each active yellow tablet missed. For additional patient instructions regarding missed pills, see the “WHAT TO DO IF YOU MISS PILLS” section in the FDA-Approved Patient Labeling. If breakthrough bleeding occurs following missed tablets, it will usually be transient and of no consequence. If the patient misses one or more white tablets, she should still be protected against pregnancy provided she begins taking a new cycle of yellow tablets on the proper day.
For postpartum women who do not breastfeed or after a second trimester abortion, start SyedaTM no earlier than 4 weeks postpartum due to the increased risk of thromboembolism. If the patient starts SyedaTM postpartum and has not yet had a period, evaluate for possible pregnancy, and instruct her to use an additional method of contraception until she has taken SyedaTM for 7 consecutive days.
2.3 Advice in Case of Gastrointestinal DisturbancesIn case of severe vomiting or diarrhea, absorption may not be complete and additional contraceptive measures should be taken. If vomiting occurs within 3 to 4 hours after tablet-taking, this can be regarded as a missed tablet.
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