hello mam, thanks fr trusting health care magic doctors fr ur health related queries. i guess ur concern is-can i pill cause fainting???? well with the description u have given about ur frnd the answer is no... dont worry mam,ur frnd is alright... If at all there would have occurred health related problems,like appearance of rashes on skin,,skin turning red,itching,,difficulty in breathing etc along with fainting then we can say its totally i pill responsible.... may be improper sleep overnight yesterday night,,,may be dehydration,,may be hypoglycemia-dint have proper meals previous night or next breakfast etc.....might hav caused fainting,,,fainting occuring after taking i pill is juz coincidence.... well mam with abv discussion u can try out my suggestions:- 1.have patience...u frnd will be fine.. 2.ask ur frnd to take sufficient nap, 3.drink sufficient quantity of water, 4.have sufficient quantity of food ,,and on time.... i hope tis was informative enough,helpful n useful fr ur query.. regards:-dr.sudha rani panagar... (Governmt has made i pill available at nearby all medical stores,at affordable prices..so tat wen couples hav unprotected sex,then get easily n have it...n prevented unwanted pregnancies n thereby unwanted abortion which has adverse effect on women....government has done i pill very easily availble ,means they might done it after confirming its safety right....so NOT TO WORRY AT AL,,,,) but i cant i say i pill is free of side effects......