This book explores the impacts and effects of iodine medication on the male and female reproductive systems. At the time of writing, iodine was celebrated as a promising treatment for a range of syphilitic conditions and increasingly administered without awareness of potential consequences or side effects. Through multiple case studies, the author demonstrates that the ingestion of iodine could result in diminished sexual function in men and the atrophy of breasts and mammary glands in women. The author contends that such effects were most common in patients who were otherwise healthy and not taking iodine to treat an underlying severe condition. The author concludes that the medical community must exercise caution when prescribing iodine and be aware of its potential to cause harm.