Medicines Containing Alcohol
Things declared Haram in religion ( whether of dietary domain or ethical domain ) can only be consumed or committed ( in medicine or otherwise ) under principle of ‘ iztarar ‘, where one has to save his life or has to come out of extreme difficulty endangering his life. If alcohol is only used as a preservative or solvent in some medicines, then there would be no prohibition in that as well . Secondly, if a haram dietary substance changes its chemical form, then its prohibition would also be lifted . Please see for details : Discussion 65978