QHS is a medical abbreviation that you might see on a prescription. It stands for ‘quaque hora somni,’ which is Latin for ‘every night at bedtime.’ This means that the medication should be taken once every night before going to sleep.
For example, if your prescription says ‘Take 1 tablet QHS,’ it means you should take one tablet of the medication every night at bedtime. This timing is often used for medications that help with sleep, manage symptoms that worsen at night, or have side effects like drowsiness.
It’s important to follow the QHS instruction carefully to ensure the medication works as intended. If you have any questions or concerns about your prescription, always consult your healthcare provider for clarification.