I need to know what the peak time for vicodin is I am prescribed 1-2 tab every 6 hours when is it more effective?

Vicodin is prescribed in 3 formulations and a few different strengths. Liver toxicity form the acetomenophen (Tylenol) component is the main worry.

This data is for Vicodin, no suffixes.

Peak plasma concentration occurs in 1.3 hours.

The half life is 3.8 hrs, which means that about 98% of Vicodin would be gone in 5*3.8 hours.

Most drugs tend to take about 20 min to notice anything.

Stopping the pain before it gets worse generally is more effective than treating when things are painful.