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  1. Tropicamide is a mydriatic that has the fastest and briefest action. 
  2. Phenylephrine is a mydriatic that does not produce cycloplegia.
  3. Atropine sulfate is the most suitable mydriatic for a patient of corneal ulcer.
  4. Drotaverine is a smooth muscle antispasmodic acting by non-anticholinergic mechanism.
  5. Homatropine, a mydriatic incapable of producing cycloplegia sufficient for refraction testing in children.
  6. Physostigmine is the most effective antidote for belladonna poisoning.
  7. Atropine is contraindicated in raised intra-ocular tension.
  8. Nicotine has clinical application and that is to be used as an aid during smoking cessation.
  9. Ganglion blocking drugs produce many side effects (on account of blocking both sympathetic and parasympathetic ganglia) and thus are no longer used in therapies.
  10. Tyramine induces release of noradrenaline from adrenergic nerve endings by a non-exocytotic mechanism.
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