▁hours ▁after ▁administration . ▁Other ▁reported ▁side ▁effects ▁are ▁some ▁that ▁are ▁known ▁to ▁be ▁associated ▁with ▁o var ian ▁hyper st im ulation , ▁including ▁gy ne colog ical ▁ab dom inal ▁pain , ▁head ache , ▁v ag inal ▁ble eding , ▁n ause a , ▁and ▁g astro int est inal ▁ab dom inal ▁pain . ▁In ▁some ▁rare ▁cases , ▁less ▁than ▁ 1 ▁user ▁in ▁ 1 0 , 0 0 0 , ▁hyp ers ens itivity ▁to ▁gan ire li x ▁can ▁cause ▁an ap hy la ct oid ▁re actions , ▁most ▁likely ▁due ▁to ▁aller gy . ▁ ▁B irth ▁defect s ▁A ▁follow - up ▁analysis ▁for ▁gan ire li x ▁done ▁by ▁the ▁Mark eting ▁Author isation ▁H older ▁compared ▁the ▁number ▁of ▁con gen ital ▁mal form ations ▁between ▁individuals ▁whose ▁moth ers ▁were ▁treated ▁with ▁gan ire li x ▁compared ▁with ▁individuals ▁whose ▁moth ers ▁were ▁treated ▁with ▁a ▁G n R H ▁ag on ist . ▁The ▁total ▁number ▁of ▁con gen ital ▁mal form ations ▁was ▁higher ▁in ▁the ▁gan ire li x ▁group ▁than ▁in ▁the ▁G n R H ▁ag on ist ▁group ▁( 7 . 6 % ▁vs . ▁ 5 . 5 %). ▁This ▁falls ▁within ▁the ▁range ▁for ▁the ▁normal ▁inc idence ▁of ▁con gen ital ▁mal form ations , ▁and ▁current ▁data ▁do ▁not ▁suggest ▁that ▁gan ire li x ▁increases ▁the ▁inc idence ▁of ▁con gen ital ▁mal form ations ▁or ▁anom