The non-oxynol nine gel, was based on one already used in condoms as a spermicide.

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Wolf also notes another issue of concern: contraceptive lubricants that contain the spermicide, nonoxynol-9.

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Much hope had been pinned on a substance called nonoxynol-9 (the spermicide used to coat condoms that are intended to prevent pregnancy rather than disease).

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Carraguard's third advantage is that it is not a spermicide.

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