Adverse effects of ciprofloxacin

Nausea, bad taste in mouth, vomiting

Inability to concentrate, tremors, seizures

Head ache, dizziness, rashes, photophobia

Swelling of lips, tendonitis, tendon rupture

Seizures are more likely if ciprofloxacin is combined with theophylline because theophylline increases the blood levels of ciprofloxacin.