No Swimming

Summer, 2026

Researchers have been working on a pill for men for more than a century, but sperm cells have always held a numerical advantage. Now a new class of drugs promises to truly stop the little guys from going where they shouldn’t. Will men buy in?

BY KYLE MACNEILL

IN LATE 2024, behind the white facade of New Zealand Clinical Research’s facilities, close to 50 men committed spermicide by test-driving YCT-529, a nonhormonal male contraceptive pill, the first of i...