Doctor says its ok. taking 40mg of atenolol, 0.5 mg of klonopin, (clonazepam) and 50mg of sertraline all once a day. is this ok?i'm afraid of drug interactions

Should be fine: Those medications usually work fine together and the dosages are reasonable. If you experience any issues you should get in touch with your prescribing doctor! Stay safe!

Check it out: You can use a drug interaction checker whenever you have questions about drug-drug interactions or drug - food interactions. Here is 1 option (Drugs.Com): https://www.drugs.com/drug_interactions.php Your pharmacist is also a good source of info.