Table 1.

Spermicide products containing N-9. Various deliver-9 products with different delivery systems and dosage options of N-9 are shown in the table, together with the directions for use.

Product	Form	Content	Required insert time	Instruction	Duration	Availability
VCF®	Film	28%	15 min	In contact with the cervix	Last for 3 h	Available
VCF®	Foam	12.5%	Less than 1 h; works immediately	Insert into vagina; wait at least 6 h for douching	–	Available
VCF®	Gel	4%	Works immediately	Insert into vagina	Up to 1 h	Available
Gynol II®	Gel	3%	Works immediately	Insert into vagina	Up to 1 h	Available
Conceptrol®	Gel	4%	Works immediately	Insert into vagina	Up to 1 h	Available
ContraSeed®	Suppository	100 mg	15 min	Insert and lie against the cervix	Up to 1 h	Available
Today®	Sponge	1000 mg	Works immediately	Wet sponge thoroughly and squeeze gently until sudsing; fold with dimple side inside; insert deeply into vagina with string loop on bottom end; wait 6 h before removing and avoid inserting for >30 h	24 h	Available
Encare®	Suppository	100 mg	At least 10 min	Insert into vagina; wait at least 6 h for douching	Up to 1 h	Not available
Advantage 24®	Gel	3.5%	Less than 30 min	Insert into vagina; release steadily in the bioadhesive delivery system attaching to the vaginal epithelial surface	24 h	Not available
Shur-Seal®	Gel	2%	At least 10 min; works immediately	Insert into vagina; wait at least 6 h for douching	–	Not available
Delfen®	Foam	12.5%	Up to 1 h	Insert into vagina; wait at least 6 h for douching	–	Not available