What it is
It’s a cough suppressant (antitussive) containing dihydrocodeine tartrate, a semi-synthetic opioid — not a plain herbal or antihistamine cough syrup. It’s used for a “stubborn, unproductive” dry cough that won’t go away, and in Australia it’s classified as Schedule 3 (Pharmacist Only) or Prescription Only depending on the formulation.

Strength
Each 10 mL contains dihydrocodeine tartrate 19 mg, and sorbitol

Bottle size
It’s commonly sold in a 200ml bottle

Dosing (as labeled)
Only use it when you need to stop your cough. Do not take more than 6 doses over a 24-hour period, and accurately measure each dose with a medicine measure (not a kitchen spoon) to make sure you get the correct amount. Exact mL-per-dose depends on age/weight and should come from the package leaflet or your pharmacist/doctor, since dosing typically differs for adults vs. children (and it’s often not recommended for young children at all).

Important safety points, since this is opioid-based

• It can cause life-threatening or fatal breathing problems (slow, shallow, unusual, or no breathing) even when used as directed — risk is highest when starting it or after a dose increase, in older adults, or in people with existing lung problems. Australian Commission on Safety and Quality in Health Care
• Combining it with benzodiazepines, other sedatives, antihistamines, antidepressants, antipsychotics, cannabis, alcohol, or other CNS depressants can cause profound sedation, respiratory depression, coma, or death.
• You can become addicted even taking it exactly as prescribed, and it can be habit-forming, causing physical dependence.
• Pregnant women should check with their doctor first — taking it regularly in the last trimester may risk breathing problems or withdrawal symptoms in the newborn.

Because this is an opioid and I don’t know your age, weight, health history, or country of purchase (dosing/availability can vary by market), please confirm the exact per-dose amount with the pharmacist or the leaflet inside your specific box rather than relying only on a general number here — that’s the safest way to avoid over- or under-dosing.