Table 4. Contraceptive practice among female patients treated with isotretinoin.

Contraceptive practice items	Yes		No
	No	%	No	%
Have you been informed about the necessity of a negative pregnancy test before starting treatment?	167	46.5%	192	53.5%
Have you been informed about the necessity of negative pregnancy tests during the treatment?	150	41.8%	209	58.2%
Have you been informed that a negative pregnancy test is necessary 5 weeks after stopping the treatment?	133	37.0%	226	63.0%
Have you been informed about the significance of using dual contraception techniques before starting treatment?	127	35.4%	232	64.6%
Have you been informed about the significance of using dual contraception techniques during the treatment?	120	33.4%	239	66.6%
Have you been informed about the significance of using dual contraception techniques 4 weeks after stopping the treatment?	125	34.8%	234	65.2%
Have you signed the patient's consent form before beginning the treatment?	227	63.2%	132	36.8%