Hi, hopefully I can help a little bit with dosage calculation. I however, cannot help with the IV drip rates because I haven't quite figured that part out yet. Unfortunatly, at the LPN school that I attend they tried to teach us the Math part in one day and then tested us over it....that didn't go over so well to say the least. Anyways, I'll help all I can. I will give you an example off of one of my practice sheets. Order: Benadryl (diphenhydramine) 25mg, PO, q6h, PRN Available: Benadryl 12.5mg/5mL First step: You need to divide what you need and what you have. What you need is the top number and what you have is the bottom number. 25mg (what you need) ----------------------- 12.5mg (what you have available) Whatever answer you get from that you will multiply it by the volume. 25mg ------- x 5mL = 10mL 12.5mL So, with this one your answer would be 10mL q6h, PRN If you need anymore help let me know. Do you know how to convert grams to milligrams? If you don't or need help just private message me!! We can learn together.