Oral Hyoscine vs Lidocaine-Prilocaine Spray vs Placebo for HSG Pain Relief

This single-centre, three-arm, randomised, double-blind, double-dummy, placebo-controlled trial evaluated the efficacy and safety of oral hyoscine butylbromide, topical lidocaine-prilocaine spray and placebo for reducing pain during hysterosalpingography in women with primary infertility. Pain was self-rated using an 11-point numerical rating scale at predefined procedural time points, including cervical instrumentation and uterine filling.