All it did to me was increase my alcohol tolerance; I suppose I was lucky in that I never had any side-effects (or any that I knew of - apart from the aforemention beer)
Plenty of time yet, there's plenty of well proven side effects to choose from, from the immediate (dry skin that happens to us all) to the ones that pop up some years later.
Pain and swelling of the lips
Severe itching
Alopecia (hair-thinning/hair-loss/baldness)
Fragile and weaker skin
Vision problems
Decreased night vision (onset may be sudden)
Conjunctivitis (pink eye)
Contact lens intolerance
Dry mucous membranes (dry nose, lungs, bladder, anus)
Peeling skin on palms/soles
Nail changes
Nosebleeds
Photosensitivity (sensitivity to light)
Elevated triglycerides in the blood
Elevated liver enzymes (indicating liver damage)
Tinnitus (ringing in ears or buzzing in ears)
Joint pain and muscle pain
Back pain
Depression
Depression
Erectile dysfunction (difficulty in maintaining erection)
Violent behavior/aggression
Psychosis (seeing or hearing things that are not real)
Suicidal ideation (rare)
Suicide attempts
Hearing impairment
Pseudotumor cerebri (swelling pressure in the brain)
Osteopenia/osteoporosis (loss in bone mass and strength/weak and fragile bones)
Hepatotoxicity (liver damage)
Anaphylaxis (rapid and deadly allergic reaction)
Allergic vasculitis (inflammation and damage to blood vessels)
Major birth defects
Cataracts/corneal opacities (can cause a decrease in vision and lead to eventual blindness)
Premature epiphyseal closure (short stature)
Neutropenia (low white blood cell count, which makes the body vulnerable to bacterial and fungal infections)
Agranulocytosis (a serious condition in which white blood cells decrease in number or disappear altogether) (rare)
Rhabdomyolysis (potentially fatal disease that destroys skeletal muscle) (rare)
Inflammatory bowel disease (inflammation of the intestine and resulting in abdominal cramping and persistent diarrhea)
Pancreatitis (inflammation of the pancreas, an organ important in digestion)
Vascular thrombosis (heart attack)
Stroke
Seizures
I have suffered with chronic muscle pain in my left leg since taking the stuff, I got in touch with my doctor at the time who simply said 'yep, that was risk, its nasty stuff. The pain may stop eventually'.
over 10 years later and nope.
Also currently being investigated is the high link between the accutane group and onset of IBS and early onset eye deterioration. Also abnormal bone growths have been linked with the known side effect of weakened bone structure but I haven't heard anything about that study in well over a year.
Roche, the maker have already lost about a dozen or so lawsuits and about 5000 were pending before it was withdrawn from sale in the US.