And it blocks the man's fluids from entering the cervical canal.
Foam stops sperm from getting into the egg.
Among typical couples who initiate use of vaginal spermicide, about one fourth will experience an accidental pregnancy in the first year. Complete information about this contraceptive is available through your clinic, your clinician or the package insert accompanying the foam you are considering. You can purchase contraceptive foam at the Student Health Pharmacy or other drug stores and supermarkets. Advantages Gives the woman control over use of a contraceptive. Available over the counter without a visit to a clinician.