FOR LOCAL USE ONLY. FORMALDEHYDE SOLUTION IS USED DILUTED IN WATER AS BACTERICIDAL DISINFECTANT 0.3% SOLUTION IS USED FOR THE TREATMENT OF WARTS. FOR HYPERHYDROSIS SOLUTION IS USED MIXED IN GLYCEROL OR ALCOHOL..FORMALDEHYDE SOLUTION IN CONCENTRATIONS OF UP TO 10% V/V IN SALINE IS USED AS A PRESERVATIVE FOR PATHOLOGICAL SPECIMENS.IT IS USED SIMILARLY AS A WATER-MISCIBLE GEL CONTAINING FORMALDEHYDE 0.75% .THE FAIR REGIMEN1 FOR THE INTRAVESICAL USE OF FORMALDEHYDE SOLUTION IN HAEMORRHAGIC CYSTITIS INVOLVES PASSIVE IRRIGATION OF THE BLADDER WITH 500 TO 1000 ML OF FORMALDEHYDE SOLUTION 1% V/V FOR A TOTAL OF 10 MINUTES, THE BLADDER SUBSEQUENTLY BEING EMPTIED AND WASHED OUT WITH 1 LITRE OF DISTILLED WATER.