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. 1984 Aug;18(2):258-62.
doi: 10.1111/j.1365-2125.1984.tb02466.x.

The stimulatory effects of caffeine, theophylline, lysine-theophylline and 3-isobutyl-1-methylxanthine on human sperm motility

C S Jiang, S A Kilfeather, R M Pearson, P Turner

The stimulatory effects of caffeine, theophylline, lysine-theophylline and 3-isobutyl-1-methylxanthine on human sperm motility

C S Jiang et al. Br J Clin Pharmacol. 1984 Aug.

Abstract

The potencies of caffeine, theophylline, lysine-theophylline and 3-isobutyl-1-methylxanthine (IBMX) in stimulating sperm motility have been compared, and we have found IBMX to be significantly more potent than the other three compounds, which did not exhibit significant differences in potency from each other.

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