For this indication, competent medicine agencies globally authorize below treatments:
Oral
200 - 200 mg
From 100 To 100 mg 2 time(s) per day every day for 14 day(s)
Non-pregnant penicillin-allergic patients who have primary or secondary syphilis can be treated with the following regimen: doxycycline 200 mg orally twice daily for two weeks, as an alternative to penicillin therapy.
Doxycycline tablets are administered by drinking a suspension of the tablets in a small amount of water. This should be done in the sitting or standing position and well before retiring at night to reduce the risk of oesophageal irritation and ulceration. If gastric irritation occurs, it is recommended that doxycycline be given with food or milk. Studies indicate that the absorption of doxycycline is not notably influenced by simultaneous ingestion of food or milk.