Dynadoxy Dosage/Direction for Use

Doxycycline (Dynadoxy) 100 mg capsule, usual adult dose: 2 capsules or 200 mg on first day in single or divided doses of 1 capsule every 12 hours; then 1 capsule a day thereafter.
For severe infections: 1 capsule every 12 hours. Or as prescribed by the physician.
For acute gonococcal infections: 200 mg at once and 100 mg at bedtime on the first day, followed by 100 mg twice a day for three days.
As an alternative single visit dose, administer 300 mg at once followed in one hour by a second 300 mg dose. The dose may be administered with food, including milk or carbonated beverage as required.
Primary and secondary syphilis: 300 mg a day in divided doses for at least 10 days.
Treatment should be continued even after the time that symptoms and fever have subsided. In streptococcal infections, therapy should be continued for 10 days to prevent the development of rheumatic fever or glomerulonephritis. The therapeutic antibacterial serum activity will usually persist for 24 hours following recommended dosage.
When used in streptococcal infections, therapy should be continued for 10 days. If gastric irritation occurs, it is recommended that Doxycycline be given with food or milk.