Fig. 1From: Efficacy and side effects of doxycycline versus minocycline in the three-dose melarsomine canine adulticidal heartworm treatment protocolNumber of dogs in each experimental tetracycline group in which the dogās owners reported any gastrointestinal side-effects during antibiotic treatment. Side-effects included vomiting, diarrhea, inappetence and weight lossBack to article page