(B) (Progesterone- only pill) (491- Dutta 6th)POP/MINIPILL* POP is contain very low dose of a progestin Leuonorgestrel, Norethisterone, desogestrel, lynestrenol or norgestrel* It has to be taken daily from the first day of the cycle*** Mechanism of action - it works mainly by making cervical mucus thick and viscous, thereby prevents sperm penetration**AdvantagesDisadvantages1. Side effects attributed to estrogen in the combined pill are totally eliminated1. Acne, mastalgia headache back through bleeding2. No adverse effect on lactation (''Lactation pill")2. All the side effects, attributed to progestins may be evident3. Easy to take as there is no ''on and off' regime3. Simple cysts of the ovary may be seen, but they do not require any surgery4. It may be prescribed in patients having (medical disorder) Hypertension, fibroid DM, epilepsy, smoking and history of thrombo-embolism4. Failure rate is about o.5-2 per 100 women years of use5. Reduces the risk of PID and endometrial cancerCONTRAINDICATION1. Pregnancy2. Unexplained vaginal bleeding3. Recent breast cancer4. Arterial disease5. Thromboembolic disease* OCP do not act by interference with placental functioning* Contraceptive of choice for Rheumatic heart disease is Barrier method (condom)* Ideal contraceptive for newly married couple is combined OCP* Ideal contraceptive for a couple living in different cities meeting only occasionally - Barrier method* Best contraceptive for parous young women- IUCD* Progesterone of choice in emergency contraceptive is Levonorgestrel*** Effective life of device - Nova Cu-T (5 years) Multiload Cu-T 375 (5years) Cu-T 380A (10 years)* OCP should be avoided in patients on antiepileptic medication* The risk of chlamydial infections is increased in patients using OCP. In most patients such chlamydial infection is asymptomaticAzithromycin is drug of choice in chlaraydial infection in pregnancy* Fishy vaginal odor is most characteristic of Bacterial vaginosis due to Gardnella viginalis (Gram negative bacilli, decreased number of lactobacilli, clue cells, few leucocytes (polymorphs), PH of discharge is >4.5)