- Methods Dextromethorphan Sustained-Release capsules of lasting antitussive were observed by acid citric induced cough model of guinea pig.
- Keywords Acid citric sildenafil;Korean epimedium herb;identification;
- Citric acid anhydrous powdered p. A.
- Using with citric acid, TBHQ is more effective.
- He gave me a taste of his acid wit.