jon lapook reports zantac's problems may not just be an impurity but something much more serious. >> we take the entire tablet, just as a patient would, and we dissolve it into the solvent. >> reporter: at this connecticut lab, called valisure, researchers test drugs from its own online pharmacy to check for purity and quality. last spring, they decided to analyze a few heartburn drugs to see if they contained a chemical called m.d.m.a., a probable last year, that same chemical had led to recalls of some blood pressure pills. >> so, we're going to crush this. >> reporter: okay. one medication stood out-- zantac and its generic version, ranitidine. it had levels of m.d.m.a. higher than considered acceptable. valisure c.e.o. david light: >> the active ingredient in zantac appears to us to be a fundamentally unstable molecule. >> reporter: light reported to the f.d.a. his suspicion that the problem is not just an impurity, but what could happen to the pill inside the body. >> and in a variety of conditions-- conditions of the lab, conditions of the human body-- it can break down and the

jon lapook.hysician. >> yeah. >> you say primary care doctors should be the first line of defense in mental health. >> yeah. and i think part of it is realizing that assessing for mental health problems, that's in our lane. just as assessing for high blood pressure or high cholesterol, anything else is in our lane. that means talking to people about their moods, but their possible mental health problems. also looking for clues. so ken mentioned any problems with sleep, is a person complaining of feeling jittery or maybe just a little bit tired? and then the things that are more subtle. so body language. and what's really important in assessing body language is actually looking at the patient. >> yeah. >> turn away from the computer. look at the person, look them in the eye, and they'll feel safe. people the to feel seen. >> and validated. >> we know talk therapy is so vital. but dr. varm amedication is also out there, it's also an option, what should people know about the path? >> medication is s

jon lapook talks to two families from a class-action lawsuit that claims their loved ones were illegallye benefits. you're watching "cbs this morning." ♪ ♪ problems. nobody likes problems. but why is that? at ibm, problems actually inspire us, to fix things, to change things, to push the world forward. which is why so many people who dare to take on problems work with ibm. which is why so many people i wanted more that's why i've got the power of 1 2 3 medicines with trelegy. the only fda-approved 3-in-1 copd treatment. ♪ trelegy. the power of 1-2-3. ♪ trelegy 1-2-3 trelegy. with trelegy and the power of 1 2 3, i'm breathing better. trelegy works 3 ways to open airways, keep them open and reduce inflammation for 24 hours of better breathing. trelegy won't replace a rescue inhaler for sudden breathing problems. trelegy is not for asthma. tell your doctor if you have a heart condition or high blood pressure before taking it. do not take trelegy more than prescribed. trelegy may increase your risk of thrush, pneumonia, and osteoporosis. call your doctor if worsened breathing, chest pain, mo

jon lapook reports, zantac's problems may not just be an impurity, but something much more serious. > take the entire tablet, just as a patient would, and we dissolve it into the solvent. >> reporter: at this connecticut lab, called valisure, researchers test drugs from its own online pharmacy to check for purity and quality. last spring, they decided to analyze a few heartburn drugs to see if they contained a chemical called m.d.m.a., a probable carcinogen. last year, that same chemical had led to recalls of some blood pressure pills. >> so, we're going to crush this. t reporter: okay. one medication stood out-- zantac and its generic version, ranitidine. it had levels of m.d.m.a. higher than considered acceptable. valisure c.e.o. david light: >> the active ingredient in zantac appears to us to be a fundamentally unstable molecule. >> reporter: light reported to the f.d.a. his suspicion that the problem is not just an impurity, but what could happen to the pill inside the body. >> and in a variety of conditions-- conditions of the lab, conditions of the human owdy-- it can break down

jon lapook. >> the priest grabbed my hand and said, "do you accept jesus?" and i was out. >> reporter: last year, at the age of 60, cindy kinder-binge las rushed to a hospital in new albany, indiana, with a heart rate four times normal. >> i seriously thought i was not going to make it. >> reporter: two months earlier she had gone to the emergency room with palpitations. >> a cardiologist walks in and he said, "who put you on thyroid medicine?" di reporter: kinder-binge had been prescribed thyroid hormone for menopausal symptom, like hot flashes, even though her thyroid blood levels were normal. she said her cardiologist had her stop taking the hormone hecause he believed it contributed to her elevated heartbeat. d> thousands of 25 again members... investigation found clinics across the country prescribing hormones like thyroid and testosterone to people with orrmal levels. eld it's not just 25 again. ultrasound technician leighann locker is a former employee of an o.b.-g.y.n. in owensboro, kentucky. he prescribed testosterone to patients with normal tstoste

jon lapook. >> shook my hand and do you accept jesus? and i was out. >> reporter: last year at the age of 60, cindy kinder-binge was rushed to a hospital in indiana with a heart rate four times normal. >> i seriously thought i was not going to make it. >> reporter: two months earlier she had gone to the emergency room with palpitations. >> a cardiologist walks in and says who put you on thyroid medicine. >> reporter: kinder-binge had been prescribed thyroid hormones for menopausal symptoms like hot flashes, even though her thyroid blood levels were id. cardiolta because he believed it contributed to her irregular heartbeat. >> thousands of 25 again members -- >> reporter: kinder-binge was treated by a nurse practitioner at a clinic called 25 again. hormones are touted as a way for patients to lose weight and feel younger, but across the country prescribing hormones like thyroid and testosterone to people with normal level, and it's not just 25 again. ultrasound technician leighann decker is a former employee of an ob-gyn in owensbro, ken

jon lapook, thank you so much.hour streaming service, that is cbsn, called "fountain of youth: hidden dangers." a half hour special that airs at 8:00 p.m. you can watch it at cbsnews.com or on our cbs news app. >>> ahead, cyntoia brown-long is >>> grab that jacket as you head out the door it's a chilly start. cool and cloudy ahead of a cold front. so a weak cold front pushes through for tonight. it's really going to fall apart. so is a few showers possible as we head through tonight and overnight mainly for the north bay looking at breezy conditions on thursday and cooler a little bit more sun on friday. [dogs barking and whimpering] [dogs whimpering] ♪ the all-new 2020 ford explorer limited hybrid. can tow up to 5000 lbs and has an epa-estimated range of 500 miles per tank. it's the greatest exploration vehicle of all time. steven could only imaginem 24hr to trenjoying a spicy taco.burn, now, his world explodes with flavor. nexium 24hr stops acid before it starts for all-day all-night protection. can you imagine 2

jon lapook spoke to two groups. problem could be serious for consumers. >>> you take the entire tablet as a patient would and sdrofl it into the salvagent. >> reporter: at this connecticut lab called valasewer, researchers test drugs from its online pharmacy to check for purity and quality. last spring they analyzed heartburn drugs to see if they contained ndma, a chemical known to possibly lead to cancer. that same chemical had led to recalls of some bluood pressure pills last year. one medication stood out -- thaddeous green aon zantac and its generic version of ranitidine. >> the active ingredient in zantac appears to be a fundamentally unstable molecule. >> reporter: light reported to the fda his suspicion that the problem is not just an impurity but what could happen to the pill inside the body. >> and in a variety of conditions, conditions of the lab, conditions of the human body, it can break down and then form the carcinogen ndma. >> reporter: you're saying the ranitidine itself can break down and form the n

jon lapook. >> prognosis depends on a number of factors including was there there damage to the heart muscle itself. is there an irregular heartbeat? how well is the heart pumping? it's -- if everything is fine and he has no other medical problems and hasn't had a heart attack, he should be able to hit the campaign trail in the not-too-distant future. >> reporter: many unanswered questions remain, especially how this helps or hurts the senator's chances. sanders and his aides argue that if his medicare-for-all plan is enacted, the stent procedure he underwent would be much more affordable. in sickness and in health, bernie sanders always manages to be on message, gayle. >> we like that. and we certainly wish him well. nothing, nothing is more important than good health. nothing in the world. thank you so much. you're also always on point. >>> ahead, what you need to know after stocks took a beating on >>> good thursday morning to you. tracking a weak, dry front pushing across the region and that means our winds are going to pick up and temps slightly cooler compared to yesterday. alon