The more common side effects of clonazepam oral tablet can include: drowsiness. problems with walking and coordination. dizziness. depression. fatigue. problems with memory.Side effects · Interactions · Other warnings · Dosage. Sep 13, - Alcohol may potentiate these effects and should be avoided. As with other anticonvulsants, clonazepam may increase the risk of suicidal. Clonazepam, sold under the brand name Klonopin among others, is a medication used to Clonazepam binds to GABAA receptors and increases the effect of the chief inhibitory neurotransmitter gamma-Aminobutyric acid (GABA).Medical uses · Adverse effects · Interactions · Pregnancy.