Velivet Triphasic Regimen (Page 2 of 9)

Special Populations

Race

There is no information to determine the effect of race on the pharmacokinetics of desogestrel and ethinyl estradiol tablets.

Hepatic Insufficiency

No formal studies were conducted to evaluate the effect of hepatic disease on the disposition of desogestrel and ethinyl estradiol tablets. However, steroid hormones may be poorly metabolized in patients with impaired liver function (see PRECAUTIONS).

Renal Insufficiency

No formal studies were conducted to evaluate the effect of renal disease on the disposition of desogestrel and ethinyl estradiol tablets.

Drug-Drug Interactions

Interactions between desogestrel/ethinyl estradiol and other drugs have been reported in the literature. No formal drug-drug interaction studies were conducted with desogestrel and ethinyl estradiol tablets (see PRECAUTIONS).

INDICATIONS AND USAGE

Velivet (desogestrel and ethinyl estradiol tablets) is indicated for the prevention of pregnancy in women who elect to use this product as a method of contraception.

Oral contraceptives are highly effective. TABLE 2 lists the typical unintended pregnancy rates for users of combination oral contraceptives and other methods of contraception. The efficacy of these contraceptive methods, except sterilization, the IUD, and implants, depends upon the reliability with which they are used. Correct and consistent use of these methods can result in lower failure rates.

*
Among couples attempting to avoid pregnancy, the percentage who continue to use a method for one year
Among typical couples who initiate use of a method (not necessarily for the first time), the percentage who experience an accidental pregnancy during the first year if they do not stop use for any other reason
Among couples who initiate use of a method (not necessarily for the first time) and who use it perfectly (both consistently and correctly), the percentage who experience an accidental pregnancy during the first year if they do not stop use for any other reason
§
The percentage of women becoming pregnant noted in columns (2) and (3) are based on data from populations where contraception is not used and from women who cease using contraception in order to become pregnant. Among such populations, about 89% became pregnant in one year. This estimate was lowered slightly (to 85%) to represent the percentage that would become pregnant within one year among women now relying on reversible methods of contraception if they abandon contraception altogether
Foams, creams, gels, vaginal suppositories and vaginal film
#
Cervical mucous (ovulation) method supplemented by calendar in the preovulatory and basal body temperature in the postovulatory phases
Þ
With spermicidal cream or jelly
ß
Without spermicides
à
The treatment schedule is one dose within 72 hours after unprotected intercourse and a second dose 12 hours after the first dose. The Food and Drug Administration has declared the following brands of oral contraceptives to be safe and effective for emergency contraception: Ovral® (1 dose is 2 white pills), Alesse® (1 dose is 5 pink pills), Nordette® or Levlen® (1 dose is 2 light orange pills), Lo/Ovral® (1 dose is 4 white pills), Triphasil® or Tri-Levlen® (1 dose is 4 yellow pills)
è
However, to maintain effective protection against pregnancy, another method of contraception must be used as soon as menstruation resumes, the frequency or duration of breastfeeds is reduced, bottle feeds are introduced or the baby reaches six months of age

TABLE 2: PERCENTAGE OF WOMEN EXPERIENCING AN UNINTENDED PREGNANCY DURING THE FIRST YEAR OF TYPICAL USE AND THE FIRST YEAR OF PERFECT USE OF CONTRACEPTION AND THE PERCENTAGE CONTINUING USE AT THE END OF THE FIRST YEAR, UNITED STATES.

% of Women Experiencing an Unintended Pregnancy within the First Year of Use

% of Women Continuing Use at One Year *

Method

Typical Use

Perfect Use

(1)

(2)

(3)

(4)

Chance §

85

85

Spermicides

26

6

40

Periodic abstinence

25

63

Calendar

9

Ovulation
Method

3

Sympto-Thermal #

2

Post-Ovulation

1

Withdrawal

19

4

Cap Þ

Parous Women

40

26

42

Nulliparous Women

20

9

56

Sponge

Parous Women

40

20

42

Nulliparous Women

20

9

56

Diaphragm Þ

20

6

56

Condom ß

Female (Reality)

21

5

56

Male

14

3

61

Pill

5

71

Progestin Only

0.5

Combined

0.1

IUD

Progesterone T

2.0

1.5

81

Copper T 380A

0.8

0.6

78

LNg 20

0.1

0.1

81

Depo-Provera

0.3

0.3

70

Norplant and Norplant-2

0.05

0.05

88

Female sterilization

0.5

0.5

100

Male sterilization

0.15

0.10

100

Emergency Contraceptive Pills: Treatment initiated within 72 hours after unprotected

intercourse reduces risk of pregnancy by at least 75%à

Lactational Amenorrhea Method: LAM is a highly effective, temporary method of

contraception.è

Source: Trussell J, Stewart F, Contraceptive Efficacy. In Hatcher RA, Trussell J, Stewart F, Cates W, Stewart GK, Kowal D, Guest F, Contraceptive Technology: Seventeenth Revised Edition. New York, NY: Irvington Publishers, 1998.

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