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(carbenicillin indanyl sodium) Tablets

To reduce the development of drug-resistant bacteria and maintain the effectiveness of Geocillin® (carbenicillin indanyl sodium) and other antibacterial drugs, Geocillin (carbenicillin indanyl sodium) should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria.


Geocillin (carbenicillin indanyl sodium) , a semisynthetic penicillin, is the sodium salt of the indanyl ester of Geopen® (carbenicillin disodium). The chemical name is: 1-(5-Indanyl)-N-(2-carboxy-3,3- dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0] hept-6-yl)-2-phenylmalonamate monosodium salt.

The structural formula is:

GEOCILLIN® (carbenicillin indanyl sodium) Structural Formula Illustration

The empirical formula is: C26H25N2NaO6S and mol. wt. is 516.55.

Geocillin (carbenicillin indanyl sodium) tablets are yellow, capsule-shaped and film-coated, made of a white crystalline solid. Carbenicillin is freely soluble in water. Each Geocillin (carbenicillin indanyl sodium) tablet contains 382 mg of carbenicillin, 118 mg of indanyl sodium ester. Each Geocillin (carbenicillin indanyl sodium) tablet contains 23 mg of sodium.

Inert ingredients are: glycine; magnesium stearate and sodium lauryl sulfate. May also include the following: hydroxypropyl cellulose; hypromellose; opaspray (which may include Blue 2 Lake, Yellow 6 Lake, Yellow 10 Lake, and other inert ingredients); opadry light yellow (which may contain D&C Yellow 10 Lake, FD&C Yellow 6 Lake and other inert ingredients); opadry clear (which may contain other inert ingredients).

What are the precautions when taking carbenicillin indanyl sodium (Geocillin)?

Consult your...

Read All Potential Precautions of Geocillin »

Last reviewed on RxList: 4/8/2008
This monograph has been modified to include the generic and brand name in many instances.

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