It is possibly the nitrogen or the sulfur that leads to the greatly diminished sex drives of people taking disulfiram. The other side effects of disulfiram are well known and vary in severity from person to person. They include head, neck and chest flushing, throbbing headaches, nausea, vomiting, diarrhea and abdominal pain, weakness, dizziness, confusion and anxiety, heart palpitations and dysrrythmias. People do not have to consume any alcohol to experience these symptoms, but if they do consume alcohol these symptoms are immediate and extremely severe, sometimes to the point of death. This can occur from even accidental consumption of alcohol in foods such as salad dressings, sauces or desserts, or from the use of cosmetics, lotions, shampoos or other similar products.
Neurological toxicity increases the longer a person is forced to consume disulfiram.
Long-term use of disulfiram has causing problems with vision, coordination and movement. Persons may become catatonic and lethargic, requiring more and more sleep to function. Even at a greatly reduced level. They may develop Parkinson's-like symptoms that can cause comas and seizures. They typically develop skin lesions and a metallic aftertaste in their mouth, often their breath smells like rotten eggs without ever consuming a drop of alcohol or developing cancer.