2-11. DISINFECTANT--GERMICIDAL AND FUNGICIDAL CONCENTRATE
Wescodyne (trade name) is a general purpose germicide, suitable for hand
cleansing as well as for disinfecting thermometers and instruments, washing furniture,
floors, and equipment. The concentrate must be diluted to make a 75 parts-per-million
(ppm) solution. This 75-ppm solution is made by adding 18 ml. of concentrate to 4 liters
(1 gallon) of water. The clear, dark amber color of this solution is an indication of its
germicidal effectiveness; when the color fades, a fresh solution must be prepared.
Povidone-iodine (Betadine, Isodine) slowly releases its iodine after it has been
applied to a surface. However, a 10 percent solution is equivalent to only 1 percent of
available iodine. The attenuated effect is claimed to compensate for the decreased
concentration of free iodine. It is effective as an antiseptic. Povidone-iodine may be
used to disinfect inanimate objects, but it is not very effective against spores or fungi.
2-13. FORMALDEHYDE SOLUTION (FORMALIN)
Formaldehyde solution (37 percent by weight) is used as a disinfectant and
deodorant. It is not only effective against vegetative bacteria and fungi, but also against
spores and viruses. A solution of 20 percent formaldehyde and 50 percent ethanol is
even more effective.
Section III. OTHER TOPICAL DRUGS
2-14. ALUMINUM ACETATE SOLUTION (BUROW'S SOLUTION)
Aluminum acetate solution is diluted with 10 to 40 parts of water for use as an
antiseptic dressing and astringent.
2-15. ZINC OXIDE OINTMENT
Zinc oxide has a mild astringent and antiseptic action and is used in treatment of
disorders of the skin, such as impetigo, eczema, ringworm, pruritis, varicose ulcers, and
psoriasis. The drug is applied directly to the area affected. Zinc oxide ointment is
supplied in 1-ounce and 1-pound containers.
2-16. CALAMINE LOTION, PHENOLATED AND MENTHOLATED
This lotion acts as a mild astringent and antiseptic agent, as described for zinc
oxide ointment. In addition, it has a soothing effect upon irritated or itchy skin. The