HFI

(redirected from Hormone-Free Interval)
AcronymDefinition
HFIHepatitis Foundation International
HFIHuman Factors International
HFIHeld for Investment (finance)
HFIHp Font Information
HFIHedge Fund Index (various organizations)
HFIHormone-Free Interval (oral contraceptives)
HFIHealthy Forests Initiative
HFIHomes for Islington (UK)
HFIHereditary Fructose Intolerance
HFIHydrogen Fuel Initiative (est. 2004)
HFIHold for Inspection (various companies)
HFIHope for Israel (Jewish ministry)
HFIHealth Food Institute (UK)
HFIHigh-Frequency Induction
HFIHostile Fire Indication
HFIHollywood Film Institute (since 1990; in Santa Monica, California)
HFIHuman Freedom Index
HFIHealing for Iran (Austin, TX)
HFIHardware Fault Insertion
HFIHealth Facility Institute
HFIHealthcare Financial, Inc. (Boston, MA)
HFIHuman Factors Interface
HFIHost Front-End Interface
HFIHighly Food Insecure
HFIHunt Foods and Industries
References in periodicals archive ?
Adding estrogen-progestin pills or estrogen-only pills to the standard 7-day hormone-free interval (as Lo Loestrin Fe does) decreases both secretion of LH and FSH and ovarian follicle activity.
Adoption of the concepts of "scheduled" versus "unscheduled" bleeding (ie, bleeding that occurs during a hormone-free interval [HFI] versus that occurring during active treatment)
The pill shortens the hormone-free interval from seven to two days and aims to end the withdrawals.
Numerous studies over the last decade have documented that lowering the doses of hormones in OCs without altering the standard 7-day hormone-free interval (HFI) compromises suppression effects and can induce hormone withdrawal symptoms.
Other data suggest shortening the hormone-free interval during oral contraceptive regimens to 3-4 days can improve some symptoms.
If you miss pills in the third week, skip the hormone-free interval and continue with three more weeks of active pills from a new pack.
Quartette(TM) features a 91-day regimen, with an 84-day ascending ethinyl estradiol dose designed to minimize unscheduled or breakthrough bleeding, followed by period-stabilizing 10 mcg ethinyl estradiol pills during the traditional seven-day hormone-free interval.
The greater number of scheduled bleeding days in the 21/7-day NGM/EE group than in the 24/4-day DRSP/EE group was expected based on the longer hormone-free interval.
In another study that compared follicular suppression by means of manipulation of the hormone-free interval with three different OC regimens, women receiving supplementation with 5 days of 10 mcg ethinyl estradiol had fewer and smaller follicles than women who had a 7-day hormone-free interval.
The product's uniqueness is based on BTG's patented shortened hormone-free interval.
1,2) Of even greater concern, at least one study (3) reported that the rise in FSH and stimulation of ovarian follicles during the hormone-free interval are sufficient to result in intermittent luteinization of a follicle, demonstrated by a rise in a urinary progesterone metabolite.