Table 3. Incidence of adverse reactions in pregnant women treated with benzathine penicillin for preventing congenital syphilis, 1954–2012.

Study	Penicillin treatment group		No penicillin treatment group
	No. of patients	Events	No. of patients	Events
Phaosavasdi 1989 [91]	191	1*	6	0
Jenniskens 1995 [93]	751	0†	109	0†
Watson-Jones 2005 [96]	88	0†	56	0†
Bronzan 2007 [97]	141	0†	31	0†
Carles 2008 [98]	73	0† ‡	12	0†

Notes:

^*Skin rash.

^†Data obtained from contact with corresponding author.

^‡All patients received dexamethasone injection.