Amoxypen Injection. 150 mg/ml Suspension for injection Pharmaceutical precautions Do not store above 25oC. Protect from light. Shake the vial before use. Swab the septum before removing each dose. Keep container in outer carton. In common with other oil-based suspensions this product does not contain an antimicrobial preservative. Only dry, sterile needles and syringes should be used for administration. Following withdrawal of the first dose, use the product within 28 days. Discard unused material safely. Dispose of any unused product and empty containers in accordance with guidance from your local waste regulation authority.