Doxycycline (as calcium ... Avoid sunlight or UV light. Asthma (syrup). Monitor blood, renal, and hepatic function in long-term use. Labor & delivery. Pregnancy. Nursing mothers: not recommended.

Doxycycline (as monohydrate ... Avoid sunlight or UV light. Asthma (syrup). Monitor blood, renal, and hepatic function in long-term use. Labor & delivery. Pregnancy. Nursing mothers: not recommended.