USFDA registered Sulfamethoxazole/Trimethoprim Fish Antibiotic from Thomas Labs
Fish-Sulfa Forte - Sulfamethoxazole/ Trimethprim exerts a bactericidal action on gram negative bacteria. Useful for control of some common bacterial fish diseases including Areomonas and Pseudomonas genera and mysobacterial group.
Each tablet contains: Sulfamethoxazole, usp............800 mg Trimethoprim, usp...................160 mg
Directions: Add one tablet (960mg active) into aquarium for each 40 gallons of water to be treated. Repeat in 24 hours. It is suggested that a partial water change be made between treatments. While duration of treatment depends on type and severity of infection, it is recommended that extended baths in the medication continue for a minimum of 5 days & for not more than 10 days. Discontinue treatment with this medication if no improvement is noted within 5 days. To remove harmless yellow color, change 20% of water and use charcoal filter until clear.
Caution: for aquarium and ornamental fish only. Not for human use. Keep out of the reach of children. Keep container tightly closed and in a cool dry place. Not to be given to fish intended for food use.