Which instructions are best to give to the patient to ensure safe and effective care of a patient taking flecainide (Tambocor)?
1) Use methylcellulose ophthalmic solution.
2) Do not rub the eyes with force when tearing.
3) Temporarily avoid tasks such as driving and operating machinery.
4) Do not discontinue therapy without first consulting a healthcare provider.
5) Do not worry if you have visual problems; this is reversible after drug withdrawal.