Is a 1mg tablet of ativan (lorazepam) stronger than a 25mg pill of librium?

Probably not: While the benzodiazepine equivalence chart I have indicates 1mg of Ativan (lorazepam) to be equivalent to 10-25 mg, a 2009 study did a head to head comparison in treating alcohol withdrawal with the two drugs. That study found the two medications to be equally effective and the authors compared starting doses of 8 mg/day of Lorazepam to 80 mg/day of librium, as such i would tend to lean to the 10/1 ratio.