The risk or severity of adverse effects can be increased when Dapoxetine is combined with Phentermine. Diclofenac: Voren is eliminated through metabolism and subsequent urinary and biliary excretion of the glucuronide and the sulfate conjugates of the metabolites. The risk or severity of adverse effects can be increased when Vigabatrin is combined with Valproic Acid. Epinephrine: (Major) Sympathomimetics, such as epinephrine, can antagonize the effects of alpha-blockers when administered concomitantly. As I tell most people, diabetes is not a glamorous profession. The risk or severity of adverse effects can be increased when Dihydroergocristine is combined with Venlafaxine.