Nausea is usually short-lived and can be managed at home with rest, fluids, and simple diet changes, and it often settles on its own within a day or two. Over-the-counter medicines mainly help specific triggers (most reliably motion sickness), while persistent, severe, or unexplained nausea needs a doctor to find and treat the underlying cause.
Available without a prescription — follow each label.
Dramamine Antihistamine | Best for motion-sickness nausea and vomiting. Works on the inner-ear balance system; take before or at the first sign of travel. Causes drowsiness, so avoid driving and alcohol. MedlinePlus notes older adults generally should not use it because safer options exist. |
meclizine Bonine / Dramamine Less Drowsy Antihistamine | Also for motion-sickness nausea and dizziness; taken about an hour before travel and dosed only once every 24 hours. Tends to be less sedating than dimenhydrinate. Like other antihistamines, generally not recommended for adults 65+. |
bismuth subsalicylate Pepto-Bismol / Kaopectate Antidiarrheal / GI protectant (salicylate) | For nausea tied to an upset stomach, indigestion, or a stomach bug with diarrhea, in adults and children 12 and older. Contains a salicylate (aspirin-related), so avoid if allergic to aspirin, and do not give to children or teens recovering from flu or chickenpox due to Reye syndrome risk. |
A doctor may prescribe these — not for self-treatment.
Zofran Serotonin 5-HT3 receptor antagonist | A doctor may prescribe this to prevent or treat stronger nausea and vomiting, especially from chemotherapy, radiation, or surgery. It blocks serotonin signals that trigger vomiting. Prescription only — not something to take on your own. |
promethazine Phenergan Phenothiazine antihistamine | A doctor may prescribe this for nausea and vomiting (including after surgery or from motion sickness) when OTC options aren't enough. It is sedating and prescription only in the US. |
metoclopramide Reglan Prokinetic agent (dopamine antagonist) | A doctor may prescribe this when nausea is linked to slow stomach emptying (gastroparesis) or reflux, as it speeds movement of food through the gut. Prescription only, and used short-term due to side-effect risks such as tardive dyskinesia. |
Start by matching the remedy to the trigger. For travel or motion sickness, an OTC antihistamine like meclizine or dimenhydrinate taken before the trip is the most reliable choice. For nausea from an upset stomach, indigestion, or a stomach bug with diarrhea, bismuth subsalicylate can help — but it isn't for children/teens recovering from a viral illness. For most other ordinary nausea, non-drug self-care does the heavy lifting: sip cold, clear fluids slowly; eat small, frequent, bland meals (crackers, toast, rice, plain potatoes); try ginger or peppermint tea; get fresh air; stay upright after eating; and avoid greasy, fried, spicy, or strong-smelling foods. Choose less-sedating options if you need to stay alert, and remember adults 65+ should generally avoid the older antihistamines. Anything stronger — or nausea with no clear cause — is a conversation for a clinician, who can identify the cause and prescribe an antiemetic if truly needed.
Get emergency help (call 911) if nausea comes with chest pain that feels tight or heavy, pain spreading to the arm, back, neck or jaw, or shortness of breath — these can signal a heart attack. Seek urgent care for a severe headache or stiff neck, confusion, blood in vomit or vomit that looks like coffee grounds, severe stomach or abdominal pain, or signs of dehydration (no urination for 8+ hours, marked weakness, dizziness). See a doctor if you cannot keep any fluids down, are vomiting three or more times a day, the nausea lasts more than about 2 days (48 hours) or keeps coming back, or you have a fever. Pregnant people with severe or constant vomiting, and anyone with nausea after a recent head injury, should also be evaluated.
General reference, not medical advice, and not a substitute for your doctor or pharmacist. The right choice depends on your symptoms, health conditions, age, and other medicines — always read each label and confirm before taking anything.