Ritalin and abnormal behaviour 
Ritalin and abnormal behaviour Patient Reports February 11, 2012
Ritalin Side Effects Report #5316424-4
Ritalin side effect was reported by a Consumer or non-health professional from FRANCE on Apr 23, 2007. Male patient, child 9 years of age, was diagnosed with psychomotor hyperactivity and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, aggression, agitation, anxiety
, apathy, asthenia, blood magnesium decreased, chest pain , decreased appetite. Ritalin dosage: 10 MG/DAY. During the same period patient was treated with CONCERTA. Patient recovered.Ritalin Side Effects Report #5155296-8
Ritalin side effect was reported by a Physician from FRANCE on Nov 09, 2006. Male patient, child 7 years of age, was diagnosed with psychomotor hyperactivity and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, eye movement disorder. Ritalin dosage: 10 MG, QD. Patient recovered.
Ritalin Side Effects Report #6042654-2
Ritalin side effect was reported by a Health Professional from SWITZERLAND on Jan 09, 2009. Female patient, 41 years of age, was diagnosed with psychomotor hyperactivity and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, aggression, agitation, rebound effect, road traffic accident. Ritalin dosage: 40 MG/DAY. Patient recovered.
Ritalin Side Effects Report #5728336-2
Ritalin side effect was reported by a Consumer or non-health professional from BRAZIL on Apr 28, 2008. Male patient, weighting 55.12 lb, was diagnosed with psychomotor hyperactivity, conduct disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, suicide attempt. Ritalin dosage: unknown. During the same period patient was treated with RISPERIDONE. Patient recovered.
Ritalin Side Effects Report #6022535-0
Ritalin side effect was reported by a Physician from NORWAY on Dec 19, 2008. Male patient, 26 years of age, was diagnosed with narcolepsy and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, asthenia, flat affect, pathological gambling, self esteem inflated. Ritalin dosage: unknown. Patient recovered.
Ritalin Side Effects Report #6060790-1
Ritalin side effect was reported by a Health Professional from NORWAY on Jan 26, 2009. Male patient, 26 years of age, was diagnosed with narcolepsy and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, asthenia, flat affect, pathological gambling, self esteem inflated. Ritalin dosage: unknown. Patient recovered.
Ritalin Side Effects Report #5598282-6
Ritalin side effect was reported by a Pharmacist from UNITED STATES on Jan 17, 2008. Male patient, 18 years of age, weighting 150.0 lb, was diagnosed with disturbance in attention and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, anger, anorexia, depression
, headache , insomnia, screaming, speech disorder. Ritalin dosage: unknown. Patient recovered.Ritalin Side Effects Report #5506064-6
Ritalin side effect was reported by a Physician from JAPAN on Oct 30, 2007. Female patient, 25 years of age, was diagnosed with depression
and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, agitation, anxiety , crying, injury, intentional self-injury, laceration, sleep phase rhythm disturbance, suicide attempt. Ritalin dosage: 40 MG/DAY. During the same period patient was treated with ANAFRANIL, LEXOTAN, SOLANAX, LENDORMIN, HALCION. Patient recovered.Ritalin Side Effects Report #5512221-5
Ritalin side effect was reported by a Physician from JAPAN on Nov 05, 2007. Female patient, 25 years of age, was diagnosed with depression
and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, agitation, crying, injury, sleep phase rhythm disturbance, suicide attempt. Ritalin dosage: 40 MG/DAY. During the same period patient was treated with ANAFRANIL, LEXOTAN, SOLANAX, LENDORMIN, HALCION. Patient recovered.Ritalin Side Effects Report #5709693-X
Ritalin side effect was reported by a Consumer or non-health professional from BRAZIL on Apr 09, 2008. Male patient, child 9 years of age, weighting 68.34 lb, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, anorexia, crying, depression
, fight in school, personality change, treatment noncompliance. Ritalin dosage: 20 MG, QD. Patient recovered.Ritalin Side Effects Report #4552662-6
Ritalin side effect was reported by a Consumer or non-health professional from on Jan 05, 2005. Male patient, child 9 years of age, weighting 70.55 lb, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, aggression, bipolar disorder
, fight in school. Ritalin dosage: 10 MG, UNK. During the same period patient was treated with STRATTERA, RISPERDAL. Patient was hospitalized. Patient recovered.Ritalin Side Effects Report #5466910-1
Ritalin side effect was reported by a Health Professional from UNITED STATES on Sept 21, 2007. Male patient, child 8 years of age, weighting 65.00 lb, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, aggression, insomnia, learning disorder
, social avoidant behaviour. Ritalin dosage: unknown. Patient recovered.Ritalin Side Effects Report #5661488-1
Ritalin side effect was reported by a Health Professional from NETHERLANDS on Mar 06, 2008. Female patient, child 8 years of age, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, hallucination, auditory. Ritalin dosage: 10 MG, UNK. Patient recovered.
Ritalin Side Effects Report #5738623-X
Ritalin side effect was reported by a Health Professional from NETHERLANDS on May 12, 2008. Female patient, child 8 years of age, weighting 48.50 lb, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, hallucination, auditory. Ritalin dosage: 10 MG, UNK. Patient recovered.
Ritalin Side Effects Report #5799593-1
Ritalin side effect was reported by a Physician from ISRAEL on June 23, 2008. Male patient, child 8 years of age, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, aggression, restlessness. Ritalin dosage: unknown. During the same period patient was treated with CONCERTA. Patient recovered.
Ritalin Side Effects Report #4925752-3
Ritalin side effect was reported by a Health Professional from DENMARK on Feb 20, 2006. Male patient, child 8 years of age, weighting 46.30 lb, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, affect lability, aggression, anorexia, enuresis, insomnia, nightmare, personality change, suicidal ideation. Ritalin dosage: 10 MG/DAY. Patient recovered.
Ritalin Side Effects Report #5857171-X
Ritalin side effect was reported by a Health Professional from FRANCE on Aug 18, 2008. Female patient, child 6 years of age, was diagnosed with attention deficit/hyperactivity disorder, epilepsy
and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, agitation, anxiety , hallucination, hallucination, visual. Ritalin dosage: 20 MG DAILY. During the same period patient was treated with VALPROIC ACID. Patient was hospitalized. Patient recovered.Ritalin Side Effects Report #5954695-1
Ritalin side effect was reported by a Physician from ISRAEL on Nov 06, 2008. Male patient, child 6 years of age, weighting 46.30 lb, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, aggression, decreased appetite, insomnia, nausea
, restlessness, weight decreased. Ritalin dosage: 20 MG DAILY. Patient recovered.Ritalin Side Effects Report #4969938-0
Ritalin side effect was reported by a Physician from UNITED STATES on Feb 04, 2005. Male patient, child 6 years of age, weighting 84.00 lb, was diagnosed with attention deficit/hyperactivity disorder, psychomotor hyperactivity and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, aggression, eye rolling, headache
, psychomotor hyperactivity, psychotic disorder . Ritalin dosage: 5 MG, BID. Patient recovered.Ritalin Side Effects Report #4940771-9
Ritalin side effect was reported by a Pharmacist from ISRAEL on Feb 21, 2006. Male patient, child 6 years of age, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abdominal discomfort, abnormal behaviour, aggression, apathy, insomnia. Ritalin dosage: 20 MG, ONCE/SINGLE. Patient recovered.
Ritalin Side Effects Report #5021018-4
Ritalin side effect was reported by a Consumer or non-health professional from UNITED STATES on June 06, 2006. Male patient, child 6 years of age, weighting 48.00 lb, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, aggression, impulsive behaviour, psychomotor hyperactivity. Ritalin dosage: unknown. Patient recovered.
Ritalin Side Effects Report #5837650-1
Ritalin side effect was reported by a Physician from IRELAND on Aug 01, 2008. Male patient, child 5 years of age, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, agitation, psychomotor hyperactivity, social avoidant behaviour. Ritalin dosage: 5 MG DAILY. Patient recovered.
Ritalin Side Effects Report #5845166-1
Ritalin side effect was reported by a Physician from IRELAND on Aug 06, 2008. Male patient, child 5 years of age, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, agitation, psychomotor hyperactivity, social avoidant behaviour. Ritalin dosage: 5 MG DAILY. Patient recovered.
Ritalin Side Effects Report #5093874-5
Ritalin side effect was reported by a Consumer or non-health professional from THAILAND on Aug 21, 2006. Male patient, child 4 years of age, weighting 74.96 lb, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, nervousness, paranoia. Ritalin dosage: 5 MG, BID. Patient recovered.
Ritalin Side Effects Report #5173425-7
Ritalin side effect was reported by a Consumer or non-health professional from UNITED STATES on Dec 07, 2006. Male patient, child 4 years of age, weighting 35.00 lb, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, fatigue, psychomotor hyperactivity. Ritalin dosage: unknown. Patient recovered.
Ritalin Side Effects Report #5746357-0
Ritalin side effect was reported by a Consumer or non-health professional from on May 09, 2008. Female patient, 37 years of age, weighting 134.5 lb, was diagnosed with attention deficit/hyperactivity disorder, anxiety
and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, anxiety , depression , irritability, pharyngeal oedema, sleep disorder . Ritalin dosage: 30 MG IN MORNING. During the same period patient was treated with TRANQUINAL, LUFTAL. Patient recovered.Ritalin Side Effects Report #5899561-5
Ritalin side effect was reported by a Consumer or non-health professional from BRAZIL on Sept 18, 2008. Female patient, 18 years of age, weighting 99.21 lb, was diagnosed with attention deficit/hyperactivity disorder, ingrowing nail and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, agitation, coordination abnormal, dizziness
, hallucination, heart rate increased, nausea . Ritalin dosage: unknown. During the same period patient was treated with RITALIN LA, ANTIBIOTICS. Patient recovered.Ritalin Side Effects Report #4657689-1
Ritalin side effect was reported by a Consumer or non-health professional from on Mar 18, 2005. Male patient, 16 years of age, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, amnesia, decreased appetite, hallucination, hypersensitivity, psychotic disorder
, staring, tinnitus . Ritalin dosage: unknown. Patient was hospitalized. Patient recovered.Ritalin Side Effects Report #4712705-3
Ritalin side effect was reported by a Consumer or non-health professional from UNITED STATES on Mar 29, 2005. Male patient, 16 years of age, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, amnesia, decreased appetite, hallucination, hypersensitivity, psychotic disorder
, staring, tinnitus . Ritalin dosage: unknown. Patient was hospitalized. Patient recovered.Ritalin Side Effects Report #4969942-2
Ritalin side effect was reported by a Consumer or non-health professional from UNITED STATES on Mar 29, 2005. Male patient, 16 years of age, was diagnosed with attention deficit/hyperactivity disorder, psychomotor hyperactivity and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, amnesia, decreased appetite, hallucination, hypersensitivity, psychotic disorder
, staring, tinnitus . Ritalin dosage: unknown. During the same period patient was treated with RITALIN LA. Patient was hospitalized. Patient recovered.Ritalin Side Effects Report #5813795-7
Ritalin side effect was reported by a Consumer or non-health professional from UNITED KINGDOM on July 14, 2008. Male patient, 15 years of age, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, completed suicide, depression
, feeling abnormal, gait disturbance, mood altered, personality change, trance. Ritalin dosage: unknown. Patient died.Ritalin Side Effects Report #5816969-4
Ritalin side effect was reported by a Consumer or non-health professional from UNITED KINGDOM on July 16, 2008. Male patient, 15 years of age, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, completed suicide, contusion, depression
, feeling abnormal, gait disturbance, impulsive behaviour, mood altered, personality change. Ritalin dosage: unknown. Patient died.Ritalin Side Effects Report #5122994-1
Ritalin side effect was reported by a Physician from BRAZIL on Sept 26, 2006. Female patient, 14 years of age, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour. Ritalin dosage: 30 MG/D. Patient recovered.
Ritalin Side Effects Report #4816518-3
Ritalin side effect was reported by a Health Professional from AUSTRALIA on Oct 24, 2005. Female patient, 14 years of age, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, homicide. Ritalin dosage: unknown. Patient recovered.
Ritalin Side Effects Report #5122995-3
Ritalin side effect was reported by a Physician from BRAZIL on Sept 26, 2006. Female patient, child 12 years of age, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, enuresis. Ritalin dosage: 30 MG/D. Patient recovered.
Ritalin Side Effects Report #5108740-6
Ritalin side effect was reported by a Physician from UNITED STATES on Sept 14, 2006. Male patient was diagnosed with attention deficit/hyperactivity disorder, heart disease congenital and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, condition aggravated. Ritalin dosage: 10 MG @ AM AND NOON. Patient recovered.
Ritalin Side Effects Report #5421974-6
Ritalin side effect was reported by a Physician from NORWAY on Aug 14, 2007. Female patient was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, anger, euphoric mood, logorrhoea, suicidal ideation. Ritalin dosage: 20 MG, TID. Patient recovered.
Ritalin Side Effects Report #5562801-6
Ritalin side effect was reported by a Physician from NORWAY on Dec 07, 2007. Female patient was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, depressed mood, disturbance in attention, feeling abnormal, vision blurred. Ritalin dosage: 45 MG/DAY. During the same period patient was treated with CIPRALEX, LAMICTAL. Patient recovered.
Ritalin Side Effects Report #5751678-1
Ritalin side effect was reported by a Health Professional from UNITED STATES on May 23, 2008. Male patient, weighting 49.99 lb, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, altered state of consciousness, ataxia
, crying, gait disturbance, hallucination, auditory, hallucination, visual, motor dysfunction. Ritalin dosage: 2.5 MG. During the same period patient was treated with CONCERTA. Patient recovered.Ritalin Side Effects Report #5924003-0
Ritalin side effect was reported by a Consumer or non-health professional from UNITED KINGDOM on Oct 10, 2008. Male patient was diagnosed with attention deficit/hyperactivity disorder, obsessive-compulsive disorder
and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, crying, emotional disorder, feeling abnormal, withdrawal syndrome. Ritalin dosage: unknown. Patient recovered.Ritalin Side Effects Report #5964971-4
Ritalin side effect was reported by a Consumer or non-health professional from BELGIUM on Nov 13, 2008. Male patient was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, aggression, hypersomnia, irritability. Ritalin dosage: 40 MG/DAY. Patient was hospitalized. Patient recovered.
Ritalin Side Effects Report #6057787-4
Ritalin side effect was reported by a Consumer or non-health professional from BELGIUM on Jan 21, 2009. Male patient was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, aggression, dependence, hypersomnia, irritability. Ritalin dosage: 40 MG/DAY. Patient was hospitalized. Patient recovered.
Ritalin Side Effects Report #4559988-0
Ritalin side effect was reported by a Consumer or non-health professional from on Jan 20, 2005. Female patient was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, anxiety
, crying, impulsive behaviour. Ritalin dosage: 10 MG 1 TID. Patient recovered.Ritalin Side Effects Report #4567646-1
Ritalin side effect was reported by a Physician from on Jan 10, 2005. Male patient, weighting 136.0 lb, was diagnosed with attention deficit/hyperactivity disorder, autism
and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, affective disorder. Ritalin dosage: 20 MG AM-LUNCH- 4 PM ORALLY. Patient recovered.Ritalin Side Effects Report #4630614-5
Ritalin side effect was reported by a Physician from on Apr 05, 2005. Male patient, weighting 110.0 lb, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, attention deficit/hyperactivity disorder, impulsive behaviour, insomnia. Ritalin dosage: 10MG PO Q 6: 30 MIN AND 10MG P.O. Q 230PM. Patient recovered.
Ritalin Side Effects Report #4636195-4
Ritalin side effect was reported by a Physician from on Apr 13, 2005. Female patient, weighting 103.0 lb, was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour. Ritalin dosage: 20 MG PO. Patient recovered.
Ritalin Side Effects Report #4702389-2
Ritalin side effect was reported by a Physician from on Jan 13, 2005. Male patient was diagnosed with attention deficit/hyperactivity disorder, foetal alcohol syndrome, tourette's disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, aggression, impulsive behaviour. Ritalin dosage: 20 MG SR TWO TAB DAILY. Patient recovered.
Ritalin Side Effects Report #4707057-9
Ritalin side effect was reported by a Health Professional from on Jan 13, 2005. Male patient, weighting 49.30 lb, was diagnosed with attention deficit/hyperactivity disorder, negativism and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour. Ritalin dosage: 40 MG Q AM; 30 MG @ NOON; 10 MG AFTER SCHOOL. Patient recovered.
Ritalin Side Effects Report #4965880-X
Ritalin side effect was reported by a Consumer or non-health professional from CANADA on Mar 29, 2006. Female patient was diagnosed with attention deficit/hyperactivity disorder and was treated with Ritalin. After drug was administered, patient experienced the following side effects: abdominal pain upper, abnormal behaviour, anorexia, headache
, suicidal ideation. Ritalin dosage: 25 MG/D. Patient recovered.Ritalin Side Effects Report #5853686-9
Ritalin side effect was reported by a Consumer or non-health professional from SOUTH AFRICA on Aug 13, 2008. Male patient, child 8 years of age, was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, arthralgia, depression
, moaning, treatment noncompliance. Ritalin dosage: 10 MG IN MORNING AND 5 MG DURING SCHOOL TIME. Patient recovered.Ritalin Side Effects Report #5153850-0
Ritalin side effect was reported by a Health Professional from on Nov 09, 2006. Male patient, 39 years of age, was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, aggression, alcoholism
, impaired driving ability, memory impairment. Ritalin dosage: unknown. During the same period patient was treated with ALCOHOL. Patient recovered.Ritalin Side Effects Report #5703743-2
Ritalin side effect was reported by a Physician from BELGIUM on Apr 07, 2008. Male patient, 25 years of age, was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, psychotic disorder
. Ritalin dosage: 20 MG. Patient recovered.Ritalin Side Effects Report #5058331-0
Ritalin side effect was reported by a Physician from BELGIUM on June 26, 2006. Male patient, 14 years of age, was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, apnoea, malaise, muscle spasms, respiratory rate increased, syncope. Ritalin dosage: unknown. Patient recovered.
Ritalin Side Effects Report #5095508-2
Ritalin side effect was reported by a Physician from UNITED STATES on Sept 01, 2006. Male patient, weighting 190.0 lb, was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, activities of daily living impaired, anger, apathy, asthenia, blood pressure increased, depression
, distractibility, disturbance in attention. Ritalin dosage: 10 MG 9 QD. Patient recovered.Ritalin Side Effects Report #5099436-8
Ritalin side effect was reported by a Health Professional from UNITED STATES on Sept 05, 2006. Male patient, weighting 190.0 lb, was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, anger, apathy, asocial behaviour, asthenia, blood pressure increased, depression
, disturbance in attention. Ritalin dosage: 10 MG 9 QD. Patient recovered.Ritalin Side Effects Report #5751669-0
Ritalin side effect was reported by a Consumer or non-health professional from GERMANY on May 21, 2008. Male patient was treated with Ritalin. After drug was administered, patient experienced the following side effects: abnormal behaviour, hallucination, auditory. Ritalin dosage: unknown. During the same period patient was treated with MAO INHIBITORS. Patient recovered.