Hypotension can also occur. No specific antidote is known.
[medic.co.il]
[…] factors that are known to be associated with an increase in the QT interval, that is, female sex, bradycardia, hypokalemia, hypomagnesemia, hypocalcemia, diuretic agent use, hypothermia
[medcraveonline.com]
[…] dizziness (especially in adults), stimulation of the CNS and an antimuscarinic effect (especially children) with excitation, ataxia, hallucinations, tonic-clonic seizures, mydriasis
[myhealthbox.eu]