Tenoretic 100/25mg is a combination medication containing 100mg Atenolol and 25mg Chlorthalidone. It comes in a package of 28 tablets and is manufactured by AstraZeneca. This prescription medication is used to treat high blood pressure. Each tablet contains a combination of 100mg Atenolol and 25mg Chlorthalidone. The medication comes in blister packs containing 28 tablets total. This is a prescription-only medication that should be taken exactly as prescribed by your healthcare provider. The product is manufactured by AstraZeneca Egypt under license from AstraZeneca UK.