Usually it's 2 teaspoons. 5ml is one tsp. If you fill the bottle cap up once it's about 1 tsp. So take 2 bottle capfuls.
The volume of one dose of cough syrup is typically measured in milliliters (ml) or teaspoons (tsp).
The unit commonly used to measure the volume of one teaspoon of cough syrup is milliliters (mL). One teaspoon is equivalent to approximately 5 milliliters of liquid.
Cough syrup is typically measured using a special measuring device that comes with the syrup, such as a dosing cup or spoon. It is important to use this measuring device to ensure accurate dosing and avoid over- or under-dosing. Avoid using regular household teaspoons or tablespoons, as they may not provide accurate measurements.
The capacity of a typical cough syrup bottle is about 4 ounces (118 mL) to 8 ounces (237 mL), with some larger bottles holding up to 12 ounces (355 mL).
If it is water, 10 grams