Originally Posted by

**Derrie**
Sounds like you're fine on the dosing, Rob.

So, my understanding of how this works is the "dry weight" is standard for everyone. It's the "lean" weight based on your height. For women, that weight is 100 lb at 5'0" and you add 5 pounds for each inch in height. So, every female who is 5'4" has a "dry weight" of 120 pounds.

For men, the dry weight is 110 lb at 5'0", and add 5 pounds for each inch. So, Rob, you're 13 inches taller than 5'0", so your dry weight would be 110 + 65, or 175 lb.

So, you take whatever dry weight is appropriate for your sex and height, and then apply the 6.5mg/kg/day standard. To satisfy my inner math geek, I'll do Rob's calculation here:

At 6'1" and male, Rob's "dry weight" is 175 lb. Converted to kilograms (1 lb = .454 kg), Rob's dry weight is approximately 75 kg. At a safe dose of 6.5mg/kg/day (6.5 X 75), Rob can take up to 487.5mg of Plaquenil per day without significantly increasing his risk of toxicity and eye damage.

Using the same calculation** (dry weight x .454 x 6.5)**, my highest safe dose, as a 5'4" female, would be 354mg of Plaquenil per day.

Well, my inner math geek is satisfied. Make sense to you all? Our real weights don't matter in this calculation; just our sex and height.