<s>[INST] Hi. I am about to get married. I met a gynaecologist and asked for a contraceptive method. She advised to take Dronis 20 for 24 days, 4 days gap, again 24 days, from the day of my next period. I would like to get your expert advise on if it has any side effects and if it is effective. Thanks. [/INST] Hi,Dronis 20 is a very effective contraceptive method with lower failure rates than the other temporary methods. It is also used with advantage in the management of PCOD and premenstrual dysphoric disorder or PMDD. The side effects are similar to any other combined pill and include vascular, hepatic, gastric, hormonal and general effects like weight gain, mood swings etc. Periodic check up is ideal as long as you use the pills. Majority of users tolerate them well. Hope this helps. </s>