First try:
Ginger and Wristbands

Although far from proven, these are safe and worth a shot, especially for mild symptoms. Ginger root, typically sold in candies and capsules, has the most supporting evidence. Occasional use of up to 250 milligrams four times a day is considered safe for most people, including women who might be pregnant.

Bracelets such as Sea-Bands, found at drugstores, stimulate acupressure points on the wrist and have been shown to combat nausea in some situations. The evidence that they work against motion sickness is mixed. However, they're safe and can be used along with other remedies.


Next try:
Antihistamines

Older over-the-counter antihistamines such as dimenhydrinate (Dramamine) and diphenhydramine (Benadryl) have been proven to counteract motion sickness and are approved by the Food and Drug Administration for use by children older than 2. The catch is that they take 30 minutes to an hour to kick in, and they can leave you feeling drowsy or light-headed. Newer, nonsedating OTC antihistamines such as loratadine (Claritin) and cetirizine (Zyrtec p) might relieve allergy symptoms but don't appear to quell a queasy stomach.


If all else fails, try:
Prescription Drugs

Promethazine (Phenergan) is another antihistamine effective at relieving nausea, but it might make you sleepy. Another choice is prescription strength meclizine (Antivert), although it, too, may cause drowsiness. A scopolamine patch (Transderm-Scop) is also very effective, but side effects including blurred vision and severe drowsiness make it a treatment of last resort. Some patients also report a rebound effect, including nausea, dizziness, and headaches when they remove the patch.