Phenergan Syrup can be taken with or without food but it is important to take it at the same time every day in order to maximize its benefits The dosage and frequency of administration will depend on the specific condition being treated Your doctor will determine the appropriate amount needed to improve your symptoms It is important to continue taking this medication for the duration prescribed by your doctor If you happen to miss a dose take it as soon as you remember However it is crucial to never take a double dose If your symptoms do not improve within 7 days of treatment inform your doctor The most common side effects of Phenergan Syrup include dry mouth blurred vision headaches and dizziness If these side effects become bothersome or severe it is important to inform your doctor There may be strategies to reduce or prevent these side effects Additionally this medication may increase sensitivity to sunlight It is recommended to use sunscreen or wear protective clothing when going outside Before taking Phenergan Syrup inform your doctor if you have glaucoma asthma or high blood pressure If you are pregnant or breastfeeding it is important to discuss this with your doctor Your doctor should also be aware of any other medications you are taking as some may interact and potentially make this medication less effective or alter its mechanism of action Generally it is advised to avoid consuming alcohol while undergoing treatment with Phenergan Syrup