Well, the end-all and be-all of any creature who is considered a strigoi is to decapitate the creature while it rests, effectively making it impossible for it to rise again from the grave. Of course, decapitation stops most things from continuing onward.

[It isn't a joke, only a dry observation. One that means Alucard's attention is focused on Vanessa and her reaction, rather than the hot glass in his hand.]

Almost every solution to strigoi benefits from knowing their exact location. Otherwise, what is recommended is almost laughable unless you know the countryfolk of Romania and the greater Balkans. Garlic is a constant, as are religious symbols. Some cite wild rose or hawthorn as a deterrent, and so on. Apotropaic devices are often things of the local land. Hard to find in cities.