I don't know myself but have you tried asking the pharmacist at the "Generics Pharmacy" there is one across from Lee plaza and another one on Locsin just past the mang inisal near the public market. They have been very helpful to me when looking for meds and I have never gotten bad meds from them unlike the "Generika Pharmacies" which I will never use again because too many fakes from China/India. Hope they can assist you.