Yes, if your medication states "100mg twice a day," it means you are taking a total of 200mg per day. When the instructions indicate "twice a day," it typically means you should take the specified dose two times daily, with a gap of approximately 12 hours between each dose.
For example, if your prescription states "Take 100mg twice a day," you would take one 100mg dose in the morning and another 100mg dose approximately 12 hours later in the evening. This would result in a total daily intake of 200mg (100mg + 100mg = 200mg). Always follow the instructions provided by your healthcare professional or the label on the medication's packaging to ensure you are taking the correct dosage at the right times. If you have any questions or concerns about your medication, don't hesitate to consult your healthcare provider or pharmacist.