LSD and possibly shrooms.
Almost all drugs can cause flashbacks depending on the tolerance of the user, but Lysergic Acid (LSD) is the most commonly known flashback induced drug, some flashbacks occurring up to 3 years after the last dosage, but continued use prior to that period would be needed to induce such a flashback. The occasional use is unlikely to cause a further 'trip' later in life.
This phenomenon is known as a "flashback," where an individual re-experiences the effects of the drug, even without taking it again. Flashbacks can occur spontaneously and are often associated with LSD and PCP use. They can be distressing and unpredictable.
Cause
Acid flashbacks are one of the long-term effects of LSD use, and can interfere with a person’s daily life even months or years after they use LSD. Scientists still know little about what causes them or how to treat them. Keep reading for more on acid flashbacks.
I presume you mean psychotropic drugs, those capable of producing an altered mental state.The answer is yes, in a variety of ways: for starters, there is the potential for overdosing, which can cause brain damage, cardiac arrest, coma and death.Even with a standard dose, unpredictable mental effects can occur, which can lead to deliberate or accidental suicide (such as jumping off a building while believing you can fly).Long-term effects can include random and debilitating flashbacks, neurological damage, and the possible triggering or acceleration of brain-based degenerative disorders such as Parkinson's or Alzheimer's disease.
Which drugs cause double vision
Any drug or situation that bears enough resemblance to past LSD experiences can trigger flashbacks. A song can do that as well. It is a misconception that this would happen spontaneously. It is also not true that LSD flashbacks or flashbacks in general are horrible experiences by definition. It is nothing more or less than an extremely vivid remembrance of a past experience, so vivid that it were almost as if you were back there.
drugs that cause harm.
they all cause cancer but not the good drugs like Advil
for the illegal drugs: the withdrawal of opioids such as morphine is known to cause mydriasis.
that is unpredictable. cause we cant find the size of the universe....
Drugs can also cause leukocytosis. Cortisone-like drugs (prednisone), lithium, and NSAIDs are the most common offenders.