• Which different groups of hallucinogenic drugs are known?

Phenylcyclidine, LSD, psychedelics, cannabinoids and anti-cholinergic drugs.

• Name a few typical effects of the hallucinogenic drugs and discuss the clinical profile of a patient who had taken them.

Sensory (especially visual) distortion. Psychosis is also very common as well as a lack of judgement and reckless behaviour.

Someone that has taken these drugs would normally be very sedated and will also a wrong perspective on reality. A lot of times they will

• How is an overdose of LSD dealt with? 

Parenteral Benzodiasepines are given to protect the patient against the convulsions and it is treated symptomatically to reduce the risk of a fatal overdose.

• How is an overdose of anticholinergic drugs dealt with?

Convulsions are treated with BD’s, psychosis are treated with haloperidol/droperidol. The overdose is mostly treated symptomatically as it doesn’t cause central nervous system suppression, the most dangerous effects are the severe hypertension and the convulsions.