Question

In: Biology

Rx: Pilocarpine nitrate 2% (w/v) Boric acid q.s. Rx Sterile water for injection q.s 20 mL...

Rx: Pilocarpine nitrate 2% (w/v) Boric acid q.s. Rx Sterile water for injection q.s 20 mL Sig: One (1) gtt OU t.i.d..

How much boric acid (in milligrams) is needed to make this prescription isotonic? (E-value pilocarpine nitrate = 0.23, E-value boric acid = 0.52). Round your answer to the nearest whole number.

Solutions

Expert Solution

question - Pilocarpine nitrate 2% (w/v) Boric acid q.s. Rx Sterile water for injection q.s 20mL How much boric acid (in milligrams) is needed to make this prescription isotonic ?

answer - 169 millligram of the boric acid is needed to make the isotonic presecription .

solution is in the figure -


Related Solutions

How many milliliters of a 1% w/v epinephrine injection must be used to prepare 20 mL...
How many milliliters of a 1% w/v epinephrine injection must be used to prepare 20 mL of an injection containing 1:200,000 w/v epinephrine?
Rx: Castor oil 10% (v/v) Tween 80 and Span 20 2% (w/v) Simple syrup qs 50...
Rx: Castor oil 10% (v/v) Tween 80 and Span 20 2% (w/v) Simple syrup qs 50 mL How many gram(s) of Span 20 are needed to prepare for the prescription, given that the required HLB for the emulsion is 10, Span 20 has an HLB of 8.6, and Tween 80 has an HLB of 15?
1, Lemonade contains 20% sucrose, 2% salt (NaCl), and 0.5% citric acid (w/v each) in water....
1, Lemonade contains 20% sucrose, 2% salt (NaCl), and 0.5% citric acid (w/v each) in water. Calculate the mole fraction for each of these components (sucrose, salt, citric acid and water). 2. 1000 kg of orange juice containing 15% solids is used to prepare orange juice concentrate in two stages. In the first stage the orange juice is passed through evaporator to remove water. The product from evaporator contains 45% solids. This partially concentrated juice is then fed into a...
20 mL of 15% HCl(v/v) 1000 mL of 10% HCl(w/v) Give the percentages of the following:...
20 mL of 15% HCl(v/v) 1000 mL of 10% HCl(w/v) Give the percentages of the following: 130 mg of HCl + 90 g of H20 How many grams of sodium chloride are there in 0.75 L of a 5% solution? What weight of NaOH would be required to prepare 500 mL of a 1.5 M solution? A solution contains 25 g NaCl/L. What is its molarity? What is the molecular weight of NaCl? What is the equivalent weight of NaCl?...
A 5.87 %w/v solution (5.87g per 100.0 mL) of starch in water was found to have...
A 5.87 %w/v solution (5.87g per 100.0 mL) of starch in water was found to have an osmotic pressure of 88.9 mmHg at 317.1 kelvin. Calculate the average molar mass of the starch used, taking 1.00 atm = 760.0 mmHg. The value of the gas constant, R , is 0.0821 L atm K-1mol-1. Present your answer in 3 signficant figures
Tetraboric acid, H2B4O7, is prepared by heating boric acid, H3BO3 (a condensation reaction involving water loss)....
Tetraboric acid, H2B4O7, is prepared by heating boric acid, H3BO3 (a condensation reaction involving water loss). If 400.0 mmol H3BO3 are used, what mass (g) of H2O is formed, assuming quantitative stoichiometric conversion? I know the answer is 9.01 but how do you get the condensation reaction?
A drug for injection is supplied as a vial has a concentration of 5% w/v. 10...
A drug for injection is supplied as a vial has a concentration of 5% w/v. 10 mL of this vial is injected into an infusion bag to make a final volume of 500 mL. What is the concentration of the drug in the infusion bag?
Sodium nitrate has a solubility of 92.1 g/100 ml of water at 20°C. Calculate the solubility...
Sodium nitrate has a solubility of 92.1 g/100 ml of water at 20°C. Calculate the solubility product.
W 24 * 55 of 50ksi. what is the 1. Ag 2. rx and ry
W 24 * 55 of 50ksi. what is the 1. Ag 2. rx and ry
If 1 mL of a 0.02% w/v isoproterenol hydrochloride solution is diluted to 10 mL with...
If 1 mL of a 0.02% w/v isoproterenol hydrochloride solution is diluted to 10 mL with sodium chloride injection before intravenous administration, calculate the percent concentration of the diluted solution.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT