Weight Dose Infants Liquid Suspension Junior Strength Chewable Regular Strength (Pounds) Oral Drops or Elixir Tablets/Capsules Tablets/Capsules 50 mg/1.25 ml 100 mg/5 ml 100 mg each 200 mg each Ibu-8 Oral. Ibu-8 is a non-selective inhibitor of cyclooxygenase, an enzyme invovled in prostaglandin synthesis via the arachidonic acid pathway. Its pharmacological effects are believed to be due to inhibition cylooxygenase-2 (COX-2) which decreases the synthesis of prostaglandins involved in mediating inflammation, pain, fever and swelling. Rheumatoid arthritis and osteoarthritis: Suggested dosage: 1200-3200 mg daily (300 mg q.i.d. or 400 mg, 600 mg or 800 mg t.i.d. or q.i.d.). Individual patients may show a better response to 3200 mg daily, as compared with 2400 mg, although in well-controlled clinical trials patients on 3200 mg did not show a better mean response in terms of efficacy. Dosing of heparin varies from indication, and dosage is by weight. Weight-based dosing offers another area for potential errors with calculations. Whether the initial dose is ordered as a unit/kilogram/hour rate versus a unit/hour versus milliliters/hour can significantly affect the initial dose. The table* below can help you figure out the right amount of diphenhydramine to give. Use your child's weight to decide on the right amount. You can find the weight in the top row of the chart. *Table notes: Age of child: Do not give diphenhydramine to children less than 6 years of age unless your child's doctor tells you to. There are other 2) Dosing is based on WEIGHT, not age. Keep note of your child's most recent weight. 3) Suppositories come in 80-, 120-, 325- and 650-mg doses. For the rectal dose, use the oral dose. These are over-the-counter (OTC) and do not require a prescription. 4) Use a proper measuring device. The molecular weight of ibuprofen is 206.28. Its molecular formula is C 13 H 18 O 2 and it has the following structural formula: Ibuprofen oral suspension, USP 100 mg/5 mL is a sucrose-sweetened, pale yellow to orange color suspension with mixed berry flavor, containing 100 mg of ibuprofen in 5 mL (20 mg/mL). Common side effects of Ibuprofen PM may include: drowsiness; day-time drowsiness, dizziness, "hangover" feeling; upset stomach, heartburn, diarrhea, constipation; dry mouth, nose, or throat; blurred vision; mild itching or rash; or. ringing in your ears. This is not a complete list of side effects and others may occur. 5vXHxk.