Sea-Legs is a brand of motion sickness medication commonly found in the UK, New Zealand, and Australia, containing the active ingredient Meclozine hydrochloride (an antihistamine). Like most motion sickness drugs, its most common side effect is drowsiness or sedation. While Meclozine is often marketed as "less-drowsy" compared to older drugs like Dramamine (dimenhydrinate), many users still experience a significant feeling of tiredness or a "foggy" sensation. Other frequent side effects include a dry mouth, blurred vision, and occasionally a slight headache. Some people may also experience urinary retention or constipation, particularly if they are predisposed to these issues. In rare cases, especially in children or the elderly, the medication can cause paradoxical excitation, leading to nervousness or restlessness instead of sleepiness. Because of the sedative effects, it is strictly advised not to drive or operate heavy machinery after taking Sea-Legs. It is also important to avoid alcohol while using the medication, as alcohol can significantly intensify the drowsiness and dizziness. For most travelers, the side effects are a small price to pay for avoiding the debilitating nausea of seasickness, but it is always recommended to test the medication on land first to see how your body reacts before embarking on a long voyage.