GENERIC NAME: GUANETHIDINE - ORAL (gwan-ETH-eh-deen)
BRAND NAME(S): Ismelin
WARNING: This medication can frequently cause dizziness and weakness which may lead to fainting, especially when first starting this medication. Symptoms occur more often upon awakening and may increase during hot weather, exercise, or when drinking alcohol. To avoid fainting do not stand quickly and avoid standing or exercising for long periods of time.
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