Renacidin® (Citric Acid, Glucono delta-lactone, and Magnesium Carbonate) is a sterile, non-pyrogenic irrigation solution for use within the lower urinary tract in the dissolution of bladder calculi of the struvite or apatite variety, and prevention of encrustations of urethral catheters and cystostomy tubes.

Each 30 mL of Renacidin contains:

Active ingredients:
Citric Acid (anhydrous), USP     1980.6 mg
     C6H8O7
Glucono delta-lactone, USP     59.4 mg
     C6H10O6
Magnesium Carbonate, USP     980.4 mg
     (MgCO3)4 · Mg(OH)2 · 5H2O

Citric Acid

Glucono delta-lactone

Magnesium Carbonate

(MgCO3)4 · Mg(OH)2 · 5H2O

Inert ingredients:
Benzoic Acid, USP     6.9 mg
Solution pH: 3.85 (3.5-4.2)

Renacidin's action on susceptible apatite calculi results from an exchange of magnesium from the irrigating solution for calcium contained in the stone matrix. The magnesium salts thereby formed are soluble in the gluconocitrate irrigating solution resulting in the dissolution of the calculus. Struvite calculi are composed mainly of magnesium ammonium phosphates which are solubilized by Renacidin due to its acidic pH. Renacidin is not effective for dissolution of calcium oxalate, uric acid or cysteine stones.

Renacidin is indicated for dissolution of bladder calculi of the struvite or apatite variety by local intermittent irrigation through a urethral catheter or cystostomy tube as an alternative or adjunct to surgical procedures.

Renacidin is also indicated for use as an intermittent irrigating solution to prevent encrustations of indwelling urethral catheters and cystostomy tubes.

Renacidin is contraindicated in the presence of demonstrable urinary tract extravasation.

Renacidin use should be stopped immediately if the patient develops fever, urinary tract infection, signs and symptoms consistent with urinary tract infection, or persistent flank pain. Irrigation should be stopped if elevated serum creatinine develops.

The contents of individual Renacidin containers should not be combined for use as continuous irrigation of the urinary tract because of complications that may arise from inadequate aseptic technique. Terminal sterilization processes that are not adequate may result in sepsis and/or injury to product handlers (e.g., irritation to exposed, unprotected areas of the skin).

Serious adverse reactions, including sepsis and hypermagnesemia, have been reported to occur when Renacidin was used for continuous irrigation of the upper urinary tract. Renacidin is not indicated for continuous irrigation of the upper urinary tract.

The most common adverse reactions with use of Renacidin for dissolution of bladder calculi or prevention of encrustations of indwelling urethral catheters are “bladder irritability” and chemical cystitis, both reported to occur in approximately 3% of patients. A transient burning sensation in the bladder following Renacidin has been reported to occur in less than 1% of patients receiving Renacidin.

Renacidin for local irrigation within the lower urinary tract is available in single-use 30 mL containers.

Prepare and Administer the Dose:

Step 1: Inspect Renacidin visually for particulate matter and discoloration prior to administration. If particulate matter or discoloration are observed, do not administer.

Step 2: Remove the plastic tab connected to the conical tip of the Renacidin container by twisting the plastic tab. See Figure 1.

Figure 1

Step 3: Connect the conical tip of the Renacidin container to the end of the urethral catheter or cystostomy tube. See Figure 2.

Figure 2

Step 4: Squeeze the Renacidin container to expel the entire contents into the urethral catheter or cystostomy tube. See Figure 3.

Figure 3

For Dissolution of Bladder Calculi: Instill 30 mL (one container) of Renacidin into the bladder via a urethral catheter or cystostomy tube. Clamp the urethral catheter or cystostomy tube for 30 to 60 minutes. Release the clamp and drain the bladder. Repeat the instillation procedure 4 to 6 times a day. Monitor for dissolution of calculi.

For Prevention of Encrustations in Urethral Catheters and Cystostomy Tubes: Instill 30 mL (one container) of Renacidin into the urethral catheter or cystostomy tube. Clamp the urethral catheter or cystostomy tube for 10 minutes. Remove the clamp and drain the bladder. Repeat the instillation procedure 3 times a day.

Renacidin is available as a sterile, non-pyrogenic irrigation solution in 30 mL single-use, low density, polyethylene containers, supplied in boxes of 30 containers each. Exposure of Renacidin to heat or cold should be minimized. Renacidin should be stored at room temperature, 59° to 86°F (15° to 30°C). Avoid excessive heat or cold (keep from freezing). Brief exposure to temperatures of up to 40°C or temperatures down to 5°C does not adversely affect the product.

NDC: 0327-0012-30

PRODUCT CODE: RN030

Revised: December, 2018

Manufactured for
GUARDIAN LABORATORIES
A DIVISION OF
UNITED-GUARDIAN, INC.
Hauppauge, N.Y. 11788

Carton Label

NDC 0327-0012-30          Rx Only

RENACIDIN®
(Citric acid, Glucono delta-lactone,
and Magnesium Carbonate) Irrigation Solution
For Urological Irrigation Only

Each 30 ml. contains:
Active ingredients: Citric acid, anhydrous, USP 1,980.6 mg.;
Glucono delta-lactone, USP 59.4 mg.; Magnesium carbonate,
USP, 980.4 mg. Inert ingredient: Benzoic acid, USP,
6.9 mg. Solution pH: 3.85 (3.5 - 4.2)

Read accompanying package insert for complete instructions on use.
Store at room temperature (59-86°F) (15-30°C). Use only if container
seal is intact, there is no leakage evident and solution is clear.

Box of thirty units – 30 ml. each
Single Dose – Sterile, Non-pyrogenic
Product code: RN030

Made in U.S.A.

RENACIDIN®
(Citric acid, Glucono delta-lactone,
and Magnesium Carbonate) Irrigation Solution
For Urological Irrigation Only

Manufactured for

GUARDIAN LABORATORIES
a division of United-Guardian, Inc., Hauppauge, NY 11788

Rev. 3 - Dec 2018