What drugs cause vertical nystagmus?

What drugs cause vertical nystagmus?

Vertical, horizontal, or rotary nystagmus may be noted….The most common drug/toxin overdoses that cause nystagmus are the following:

• Anticonvulsants (phenytoin, carbamazepine, valproic acid, lamotrigine, topiramate)
• Ethanol.
• Lithium.
• Dextromethorphan.
• Phencyclidine (PCP)
• Ketamine.
• Lysergic acid diethylamide (LSD)

Does PCP cause nystagmus?

In PCP exposure, the patient may have nystagmus when he or she is awake and agitated. Additional autonomic effects at low doses (less than 5 mg) include hypertension, tachycardia, tachypnea with shallow breathing, salivation, flushing, and diaphoresis.

What is PCP toxicity?

Phencyclidine, or PCP, is an illegal street drug. It can cause hallucinations and severe agitation. This article discusses overdose due to PCP. An overdose is when someone takes more than the normal or recommended amount of something, usually a drug. An overdose may result in serious, harmful symptoms or death.

Is PCP a stimulant depressant or hallucinogen?

​​​​​​​​​​​PCP is one of several drugs known as hallucinogens. It can also work as a stimulant, an anesthetic, or a painkiller, depending on how much is taken. The name PCP is a short form of the drug’s chemical name.

What can cause vertical nystagmus?

Vertical nystagmus (downbeat and upbeat nystagmus) is typically caused by posterior fossa lesions. Other causes include medication side effects, vitamin deficiencies, inflammatory and autoimmune/paraneoplastic conditions, and hereditary and degenerative cerebellar ataxias.

What does a vertical nystagmus mean?

Nystagmus is a condition where the eyes move rapidly and uncontrollably. They can move: side to side (horizontal nystagmus) up and down (vertical nystagmus) in a circle (rotary nystagmus)

Is vertical nystagmus normal?

CONCLUSIONS—Vertical and asymmetric nystagmus are most commonly associated with serious intracranial pathology and its presence is an indication for neuroimaging studies. However, such nystagmus can occur in children with retinal disease, albinism, and in cases with CIN.

Is vertical nystagmus central or peripheral?

Vertical nystagmus is considered specific for central vertigo. Nystagmus of central origin characteristically is worsened by fixation of gaze, while peripheral nystagmus may be ameliorated.

Can vertigo cause vertical nystagmus?

Vertical nystagmus in the test, especially down-beating nystagmus during the bowing position, may indicate the presence of PSC-BPPV. Moreover, vertical nystagmus during the BLT may occur in patients with hidden PSC-BPPV who complain of remnant vertigo symptoms.

What is vertical diplopia?

Patients with vertical diplopia complain of seeing two images, one atop or diagonally displaced from the other. The assessment of these patients begins with a thorough history, including questions about previous eye muscle operations, childhood strabismus, and patching or orthoptic exercises.

What drugs have barbiturates in it?

Barbiturates are available under the following different brand names: amobarbital (Amytal), secobarbital (Seconal), butabarbital (Butisol), pentobarbital (Nembutal), belladonna and phenobarbital (Donnatal), butalbital/acetaminophen/caffeine (Esgic, Fioricet), and butalbital/aspirin/caffeine (Fiorinal Ascomp, Fortabs).