<prompt> DMPA is given once in -3 months6 months9 months45 days  <response>: Ans. is a i.e., 3 months HORMONAL CONTRACEPTIVES These are hormonal preparations used for reversible suppression of feility. Types of methods A. Oral Combined pill monophasic pills It contains an estrogen and a progestin. This is the most effective and popular method. Efficacy is 98-99 Preparation are - Ethinyl estradiol 30 pg 03 mg Norgestrel 0.3 mg Ethinyl estradiol 50 .tg 05 mg Levonorgestrel 0.25 mg Ethinyl estradiol 30 pig 03 mg Desogestreol 0.15 mg One tablet containing estrogen and progesterone is taken daily for 21 days staing on 51day of mensturation. Phased regimens The estrogen dose is kept constant or varied slightly between 30-40 mg, while the amount of pregestin is low in first phase and progressiely higher in the second and third phases. Preparations are Biphasic pills Day 1-10 - Ethinyl estradiol 35 mg Norethindrone 0.5 mg Day 11-21 - Ethinyl estradiol 35 mg Norethindrone 1 mg. Triphasic pills Day 1-7 - Ethinyl estradiol 35 mg Norethindrone 0.5 mg Day 8-14 -Ethinyl estradiol 35 mg Norethindrone 0.75 mg Day 15-21 - Ehinyl estradiol 35 mg Norethindrone 1 mg Minipill progestin only pill A low dose progestin pill is taken daily without any gap. Preparations - Norethindrone 0.35 mg or Norgestrel 75 mg. Postcoital emergency pills. a Levonorgestrel 0.5 mg ethinyl estradiol 0.1 mg -- within 72 hours of unprotected intercourse and repeated after 12 hours - Yuzpe method. b Levonorgestrel alone 0.75 mg taken twice with 12 hour gap within 72 hours of unprotected intercourse - method of choice for emergency contraception. c Mifepristone 600 mg single dose within 72 hours of unprotected intercourse. B. Injectable They are given i.m. as oily solution 1.Long acting progestin alone a Depot medroxy progesterone acetate DMPA 150 mg at 3 month intervals. or b Norethindrone norethisterone enanthate NEE 200 mg at 2 months intervals. c The most impoant undesirable propey is complete disruption of menstural bleeding pattern and total amenorrhoea more common with DMPA. 2.Long acting progestin long acting estrogen - once a month. 