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Levora-21 Nombres de marca, Levora-21 Analogos

Levora-21 Marca los nombres de mezcla

  • Lo-Femenal 21 Tablets (ethinyl estradiol + norgestrel)
  • Ovral 21 Tablets (ethinyl estradiol + norgestrel)
  • Ovral 28 Tablets (ethinyl estradiol + norgestrel)
  • Levora-21 Formula quimica

    C21H28O2

    Levora-21 RX enlace

    http://www.rxlist.com/cgi/generic/norgeth.htm

    Levora-21 FDA hoja

    Levora-21 MSDS (hoja de seguridad de materiales)

    Levora-21 Sintesis de referencia

    GA Smith, H. Smith, EE.UU. Pat. 3,959,322 (1976)

    Levora-21 Peso molecular

    312.446 g/mol

    Levora-21 Punto de fusion

    206oC

    Levora-21 H2O Solubilidad

    No hay información disponible

    Levora-21 Estado

    Solid

    Levora-21 LogP

    3.251

    Levora-21 Formas de dosificacion

    Tableta

    Levora-21 Indicacion

    Se utiliza como un anticonceptivo oral para prevenir el embarazo

    Levora-21 Farmacologia

    Norgestrel se usa como anticonceptivo femenino. Norgestrel es una progestina o una forma sintética de la hormona natural del sexo, la progesterona. En el ciclo menstrual normal de una mujer, un óvulo madura y es liberado de los ovarios (ovulación). El ovario se produce progesterona, la prevención de la liberación de los huevos más y preparar el revestimiento del útero para un posible embarazo. Si se produce un embarazo, los niveles de progesterona en el cuerpo siguen siendo altos, el mantenimiento de la mucosa del útero. Si no ocurre el embarazo, los niveles de progesterona en la caída del cuerpo, resultando en un período menstrual. Norgestrel trucos del cuerpo procesos en el pensamiento de que la ovulación ya ha ocurrido, por mantener altos niveles de la progesterona sintética. Esto evita la liberación de los óvulos de los ovarios.

    Levora-21 Absorcion

    65%

    Levora-21 Toxicidad

    Náuseas, vómitos y somnolencia / fatiga, hemorragia por deprivación, LD50 = mg / kg (por vía oral en ratas)

    Levora-21 Informacion de Pacientes

    PATIENT INFORMATION

    WHEN TO START THE FIRST PACK OF PILLS

    For the 21-day pill pack you have two choices of which day to start taking your first pack of
    pills. (See DAY 1 START or SUNDAY START directions below.) Decide with your health-care
    professional which is the best day for you. The 28-day pill pack accommodates a SUNDAY START only.
    For either pill pack pick a time of day which will be easy to remember.

    DAY 1 START

    These instructions are for the 21-day pill pack only. The 28-day pill pack does not accommodate a
    DAY 1 START dosage regimen.

    1. Take the first "active" white pill of the first pack during the first 24 hours of your period.

    2. You will not need to use a back-up nonhormonal method of birth control, since you are starting
    the pill at the beginning of your period.

    SUNDAY START

    These instructions are for either the 21-day or the 28-day pill pack.

    1. Take the first "active" white pill of the first pack on the Sunday after your period starts, even
    if you are still bleeding. If your period begins on Sunday, start the pack that same day.

    2. Use a nonhormonal method of birth control (such as condoms and/or spermicide) as a backup method if
    you have sex anytime from the Sunday you start your first pack until the next Sunday (7 days).

    WHAT TO DO DURING THE MONTH

    1. TAKE ONE PILL AT THE SAME TIME EVERY DAY UNTIL THE PACK IS EMPTY.

    Do not skip pills even if you are spotting or bleeding between monthly periods or feel sick to your
    stomach (nausea).

    Do not skip pills even if you do not have sex very often.

    2. WHEN YOU FINISH A PACK OR SWITCH YOUR BRAND OF PILLS:

    21 pills: Wait 7 days to start the next pack. You will probably have your period during that week. Be
    sure that no more than 7 days pass between 21-day packs.

    28 pills: Start the next pack on the day after your last "reminder" pill. Do not wait any days between
    packs.

    WHAT TO DO IF YOU MISS PILLS

    The pill may not be as effective if you miss white "active" pills, and particularly if you miss the first
    few or the last few white "active" pills in a pack.

    If you MISS 1 white "active" pill:

    1. Take it as soon as you remember. Take the next pill at your regular time. This means you may take 2 pills
    in 1 day.

    2. You COULD BECOME PREGNANT if you have sex in the 7 days after you miss pills. You MUST use a nonhormonal
    birth-control method (such as condoms and/or spermicide) as a backup for those 7 days.

    If you MISS 2 white "active" pills in a row in WEEK 1 OR WEEK 2 of your pack:

    1. Take 2 pills on the day you remember and 2 pills the next day.

    2. Then take 1 pill a day until you finish the pack.

    3. You COULD BECOME PREGNANT if you have sex in the 7 days after you miss pills. You MUST use a nonhormonal
    birth-control method (such as condoms and/or spermicide) as a backup for those 7 days.

    If you MISS 2 white "active" pills in a row in THE 3rd WEEK:

    The Day 1 Starter instructions are for the 21-day pill pack only. The 28-day pill pack does not accommodate a
    DAY 1 START dosage regimen. The Sunday Starter instructions are for either the 21-day or 28-day pill pack.

    1. If you are a Day 1 Starter:

    THROW OUT the rest of the pill pack and start a new pack that same day.

    If you are a Sunday Starter:

    Keep taking 1 pill every day until Sunday.

    On Sunday, THROW OUT the rest of the pack and start a new pack of pills that same day.

    2. You may not have your period this month but this is expected. However, if you miss your period 2 months in a
    row, call your health-care professional because you might be pregnant.

    3. You COULD BECOME PREGNANT if you have sex in the 7 days after you miss pills. You MUST use a nonhormonal
    birth-control method (such as condoms and/or spermicide) as a backup for those 7 days.

    If you MISS 3 OR MORE white "active" pills in a row (during the first 3 weeks):

    The Day 1 Starter instructions are for the 21-day pill pack only. The 28-day pill pack does not accommodate a
    DAY 1 START dosage regimen. The Sunday Starter instructions are for either the 21-day or 28-day pill pack.

    1. If you are a Day 1 Starter:

    THROW OUT the rest of the pill pack and start a new pack that same day.

    If you are a Sunday Starter:

    Keep taking 1 pill every day until Sunday.

    On Sunday, THROW OUT the rest of the pack and start a new pack of pills that same day.

    2. You may not have your period this month but this is expected. However, if you miss your period 2 months in a
    row, call your health-care professional because you might be pregnant.

    3. You COULD BECOME PREGNANT if you have sex in the 7 days after you miss pills. You MUST use a nonhormonal
    birth-control method (such as condoms and/or spermicide) as a backup for those 7 days.

    A REMINDER FOR THOSE ON 28-DAY PACKS

    If you forget any of the 7 pink "reminder" pills in Week 4:

    THROW AWAY the pills you missed.

    Keep taking 1 pill each day until the pack is empty.

    You do not need a back-up nonhormonal birth-control method if you start your next pack on time.

    FINALLY, IF YOU ARE STILL NOT SURE WHAT TO DO ABOUT THE PILLS YOU HAVE MISSED

    Use a BACK-UP NONHORMONAL BIRTH-CONTROL METHOD anytime you have sex.

    KEEP TAKING ONE PILL EACH DAY until you can reach your health-care professional.

    PREGNANCY DUE TO PILL FAILURE

    The incidence of pill failure resulting in pregnancy is approximately 1% if taken every day as directed, but the
    average failure rate is approximately 5% including women who do not always take the pill exactly as directed
    without missing any pills. If you do become pregnant, the risk to the fetus is minimal, but you should stop
    taking your pills and discuss the pregnancy with your health-care professional.

    PREGNANCY AFTER STOPPING THE PILL

    There may be some delay in becoming pregnant after you stop using oral contraceptives, especially if you had
    irregular menstrual cycles before you used oral contraceptives. It may be advisable to postpone conception until
    you begin menstruating regularly once you have stopped taking the pill and desire pregnancy.

    There does not appear to be any increase in birth defects in newborn babies when pregnancy occurs soon after
    stopping the pill.

    If you do not desire pregnancy, you should use another method of birth control immediately after stopping the
    oral contraceptive pill.

    OVERDOSE

    Overdosage may cause nausea, vomiting, and fatigue/drowsiness. Withdrawal bleeding may occur in females. In
    case of overdosage, contact your health-care professional or pharmacist.

    OTHER INFORMATION

    Your health-care professional will take a medical and family history before prescribing oral contraceptives
    and will examine you. The physical examination may be delayed to another time if you request it and the health-
    care professional believes that it is appropriate to postpone it. You should be reexamined at least once a year.
    Be sure to inform your health-care professional if there is a family history of any of the conditions listed
    previously in this leaflet. Be sure to keep all appointments with your health-care professional, because this
    is a time to determine if there are early signs of side effects of oral-contraceptive use.

    Do not use the drug for any condition other than the one for which it was prescribed. This drug has been
    prescribed specifically for you; do not give it to others who may want birth-control pills.

    HEALTH BENEFITS FROM ORAL CONTRACEPTIVES

    In addition to preventing pregnancy, use of oral contraceptives may provide certain benefits. They are:

    � Menstrual cycles may become more regular.

    � Blood flow during menstruation may be lighter, and less iron may be lost. Therefore, anemia due to iron
    deficiency is less likely to occur.

    � Pain or other symptoms during menstruation may be encountered less frequently.

    � Ovarian cysts may occur less frequently.

    � Ectopic (tubal) pregnancy may occur less frequently.

    � Noncancerous cysts or lumps in the breast may occur less frequently.

    � Acute pelvic inflammatory disease may occur less frequently.

    � Oral-contraceptive use may provide some protection against developing two forms of cancer: cancer of the
    ovaries and cancer of the lining of the uterus.

    If you want more information about birth-control pills, ask your health-care professional or pharmacist. They
    have a more technical leaflet called the Professional Labeling which you may wish to read.

    Levora-21 Organismos afectados

    Humanos y otros mamíferos