The standard dosage for oral Benadryl is 1 mg per pound of body weight, given 2-3 times a day. Most drug store diphenhydramine tablets are 25 mg, which is the size used for a 25 pound dog. Always double check the dosage before giving an over the counter medication. In addition, many formulations are combined with other medications such as Tylenol so make sure Benadryl tablets contain only diphenhydramine.
NEXT STEP. Find out how much your project will cost. Provide a few details about your project and receive competitive quotes from local pros. The average national cost of adding a room or building an addition is $40,960, with most homeowners spending between $21,711 and $63,014.This data is based on actual project costs as reported by HomeAdvisor members.rovide a few details about your project and receive competitive quotes from local pros. The average national cost of adding a room or building an addition is $40,960, with most homeowners spending between $21,711 and $63,014.
1 A Michigan homeowner spent less than $10,000 for a 20x14-foot family room. 2  Hiring a contractor to build a family room addition can run $75-$250 a square foot, depending on complexity, materials and local labor rates, or $30,000-$100,000 for a 16x25-foot room. Unless it's a simple conversion of existing space, you'll need blueprints for the addition. 2  Hiring an architect to create a set of plan drawings could cost you a flat fee of $700-$10,000 or more, depending on size and complexity, or the architect may charge 5-15 percent of the project's costs.