Objective: As the clinical trials to develop male contraceptive pills are underway, understanding men's attitudes towards this contraceptive method is transcendental. This research was conducted to identify the degree of willingness and the determinants to use male contraceptive pill among Spaniard men.
Methods: A sample of 402 Spaniards men was presented with 36 scenarios comprising four within-subject factors (cost of pills, pill efficacy, side effects and context). In each scenario, a man is asked by his partner to use the contraceptive pill. Participants indicated their own willingness to use the pill in each circumstance.
Results: Cluster analysis revealed that participants took one of seven different positions regarding their willingness to use a contraceptive pill: never agree (10%); mainly depends on pill efficacy (6%); mainly depends on side effects (10%); depends on side effects and efficacy (12%); depends on context and side effects (12%); quite always (25%); always agree (25%). Participants' willingness to use contraceptive pills was more pronounced in the case of mild side effects and higher pill efficacy.
Conclusion: Fifty percent of participants would use the male pill regardless of the circumstances. Access to this contraceptive method, when available, can contribute to greater equity in reproductive rights of the population.
Keywords: Male contraceptive pill; Spain.