Yea
Lead poisoning typically does not cause pinpoint pupils. Pinpoint pupils are more commonly associated with opioid overdose or use. Lead poisoning can cause a variety of symptoms, including abdominal pain, fatigue, and cognitive impairment.
Bright light (as one natural reason). Opiate based drugs and medications can cause pinpoint pupils.
pontine hemorrhage
no, uppers, acid & ecstacy will dialate your pupils. downers, like heroin and oxy's will constrict "pinpoint" your pupils
no and no
One's pupils get smaller in bright light. An extremely bright light can make the pupils become quite small, like a pinpoint. Special situations which can produce pinpoint pupil other than light are: 1. Opium overdose 2. Organophosphate poisoning 3. Pontine haemorrhage
Heroin intoxication.
Yes, it does. Especially once it starts to wear off, however, it may depend on the person.
The drugs that most commonly cause constricted pupils or "Pinpoint" are strong opiods such as Heroin, morphine, oxycodone, or high doses of norco / vicodin.
Listing them all would be time-consuming so lets put it this way. Drugs can cause a pupil to change in two ways by dilation making the pupil larger or constricting the pupils. Only two drugs constrict the pupils those being opiates and alcohol. So anything but, these can cause the pupils to dilate.
Vomiting. Foaming at the mouth. Uncontrollable muscle movements. Choking on your own fluids. Pinpoint pupils and bloodshot eyes.