The more I read about the history of Joy Division and the progression of Ian's illness, the more suspicious I am about the role that prescription drugs may have played in his death. Barney himself has stated this opinion on many occasions.
Ian was prescribed Phenobarbital for his epilepsy. Phenobarbital, as I unfortunately know from personal experience, is probably the nastiest drug on earth - much, much nastier than heroin. Unlike opiates or benzodiazepines, there are no pleasantries to this drug - no euphoria, no equilibrium of emotions, and definitely no lifting of depression. In fact it has long been known that Pheno can make depression significantly worse in those who are already suffering and promote nihilistic and suicidal thoughts. This drug is a big black hole that literally eats away your personality until there is nothing left. It is very rarely prescribed these days for this very reason. Significantly, Ian stopped taking the drug shortly before his suicide. As any doctor will tell you, this is the worst possible thing to do, as the dosage must be gradually tapered off. Withdrawal from Pheno can kill you in itself.
What annoys me about this, is that this drug was already widely discredited as a treatment for epilepsy in the late 70s, when it was prescribed to Ian. Benzos like Valium and Nitrazepam had already replaced Phenobarbital as the front line treatment for this condition. In my opinion, Ian's doctor at the time has a lot to answer for in the demise of this lost genius.
If only the miracle drugs of today had been around at the time... but then again, this poses a difficult and disturbing question. We love Ian's music and lyrics because of their darkness and desolation, and who is to say whether or not this nasty and insidious drug played a part in his glimpse into the dark, tortured abyss? We all know that Barney's consumed his fair share of MDMA over the years, and come up with uplifting gems like "Krafty" and "Regret". I think maybe we underestimate the influence of drugs in the development of music, but unfortunately in Ian's case, that influence killed him.