Common: Headache, Flush.
Uncommon: Dizziness, paraesthesia, tachycardia, palpitations, hypotension, nausea, abdominal pain, rash, pruritus, fatigue.
Rare: Syncope, vomiting, urticaria, arthralgia, myalgia, impotence/sexual dysfunction.
Very rare: Gingival hyperplasia, gingivitis, increased liver enzymes, photosensitivity reactions, leucocytoclastic vasculitis, pollakisuria, hypersensitivity reactions.
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