Guanethidine is used in the treatment of which of the following condition?
Guanethidine (10%) eye drops is useful in decreasing lid retraction in Thyrotoxic ophthalmopathy. It is an adrenergic neuron blocker which acts by inhibiting the release of noradrenaline in response to nerve stimulation.
Thyrotoxic ophthalmopathy
Ptosis
Bell's palsy
Horner's syndrome