Although marijuana for medicinal purposes is now considered a form of treatment, there is still a lot of research to be done concerning its effects. Smoking marijuana daily can damage cells in the bronchial passage and decrease the ability of immune cells present in the lungs to fight off fungi, bacteria and tumor cells. For patients with already low immunity, this could mean an increase in the possibility of dangerous pulmonary infections.
Patients suffering from pre-existing immune deficits resulting from AIDS, organ transplant or chemotherapy should be administered medicinal marijuana as infrequently and little as possible, otherwise it may accelerate or aggravate the very disorders it is being used to treat.
Marijuana has also known to trigger bi-polar psychosis, paranoia, delusions, depersonalization, hallucinations, flashbacks, panic attacks and schizophrenia. This should caution the doctors who are administering medicinal marijuana, to the terminally ill and mental illness patients to not only exercise severe restraint, but also tread with caution while prescribing the dosage to them while adopting the alternative course of treatment.
Unsupervised and intensive usage of medicinal marijuana also has many indirect effects on coordination, perception and judgment which could lead to many falls, injuries and accidents, not just in a vehicle but others as well.