Eighteen male patients with primary syphilis were randomly assigned to one of the following treatment schedules: ceftriaxone (3 g in a single intramuscular [im] injection), ceftriaxone (2 g im daily for two days), ceftriaxone (2 g im daily for five days), and benzathine penicillin (2.4 X 10(6) units in a single im injection).
Motion Sickness - One of the most common causes of dizziness accompanied by nausea and vomiting is motion sickness, which is a normal reaction to head motion. Symptoms usually start with paleness of the skin, followed by yawning, sweating and restlessness.
Dizziness, lightheadedness and vertigo are all symptoms of severe dehydration and are usually caused by a lack of blood in the brain. Severe dehydration can also cause confusion and can make it difficult to concentrate.