A health worker checks chloroquine pills distributed by the Ministry of Health at the pharmacy of the Nossa Senhora da Conceicao hospital, amid the coronavirus disease (COVID-19) outbreak in Porto Alegre, Brazil, May 26, 2020. REUTERS/Diego Vara

A health worker holds a chloroquine pill distributed by the Ministry of Health at the pharmacy of the Nossa Senhora da Conceicao hospital, amid the coronavirus disease (COVID-19) outbreak in Porto Alegre, Brazil, May 26, 2020. REUTERS/Diego Vara

U.S. President Donald Trump talks about taking daily doses of hydroxychloroquine pills as Vice President Mike Pence and Restaurant Brands International CEO Jose Cil listen during a coronavirus disease (COVID-19) pandemic meeting with restaurant executives and industry leaders in the State Dining Room at the White House in Washington, U.S., May 18, 2020. REUTERS/Leah Millis

U.S. President Donald Trump talks about taking daily doses of hydroxychloroquine pills as he addresses a coronavirus disease (COVID-19) pandemic meeting with restaurant executives and industry leaders while sitting beneath a portrait of President Abraham Lincoln in the State Dining Room at the White House in Washington, U.S., May 18, 2020. REUTERS/Leah Millis

U.S. President Donald Trump talks about taking daily doses of hydroxychloroquine pills as he addresses a coronavirus disease (COVID-19) pandemic meeting with restaurant executives and industry leaders beneath a portrait of President Abraham Lincoln in the State Dining Room at the White House in Washington, U.S., May 18, 2020. REUTERS/Leah Millis

U.S. President Donald Trump talks about taking daily doses of hydroxychloroquine pills as he addresses a coronavirus disease (COVID-19) pandemic meeting with restaurant executives and industry leaders in the State Dining Room at the White House in Washington, U.S., May 18, 2020. REUTERS/Leah Millis

A nurse shows a Hydroxychloroquine pill, amid the coronavirus disease (COVID-19) outbreak, at Nossa Senhora da Conceicao hospital in Porto Alegre, Brazil, April 23, 2020. REUTERS/Diego Vara

A nurse shows a pill of hydroxychloroquine, amid the coronavirus disease (COVID-19) outbreak, at Nossa Senhora da Conceicao hospital in Porto Alegre, Brazil, April 23, 2020. REUTERS/Diego Vara

A pharmacy worker shows pills of hydroxychloroquine used to treat the coronavirus disease (COVID-19) at the CHR Centre Hospitalier Regional de la Citadelle Hospital in Liege, Belgium, April 22, 2020. REUTERS/Yves Herman

A pharmacy worker shows pills of hydroxychloroquine used to treat the coronavirus disease (COVID-19) at the CHR Centre Hospitalier Regional de la Citadelle Hospital in Liege, Belgium, April 22, 2020. REUTERS/Yves Herman

A fentanyl user displays a "safe supply" of opioid alternatives, including morphine pills, provided by the local health unit to combat overdoses due to poisonous additives and to support addicts and the homeless into practicing social distancing to help slow the spread of coronavirus disease (COVID-19) in the Downtown Eastside of Vancouver, British Columbia, Canada April 6, 2020. Picture taken April 6, 2020. REUTERS/Jesse Winter

Oscar Berrios, a tourist from Chile, shows his remaining pills, as he is stranded in Cuba amid concerns of the spread of the coronavirus disease (COVID-19) outbreak, in Havana, Cuba, March 27, 2020. REUTERS/Alexandre Meneghini

Outside seats are pilled up in a closed bar, as France's Prime Minister announced to close most all non-indispensable locations, notably cafes, restaurants, cinemas, nightclubs and shops from midnight on Saturday, March 14 due to concerns over the coronavirus (COVID-19), in Paris, France, March 14, 2020. REUTERS/Benoit Tessier

A police officer shows an ecstasy pill stamped with the face of U.S. President Donald Trump after a seizure by Chilean authorities in Concepcion, Chile, February 5, 2020. REUTERS/Jose Luis Saavedra

Ecstasy pills stamped with the face of U.S. President Donald Trump are pictured after a seizure by Chilean authorities in Concepcion, Chile, February 5, 2020. REUTERS/Jose Luis Saavedra

A police officer shows an ecstasy pill stamped with the face of U.S. President Donald Trump after a seizure by Chilean authorities in Concepcion, Chile, February 5, 2020. REUTERS/Jose Luis Saavedra TPX IMAGES OF THE DAY

Ecstasy pills stamped with the face of U.S. President Donald Trump are pictured after a seizure by Chilean authorities in Concepcion, Chile, February 5, 2020. REUTERS/Jose Luis Saavedra

A police officer weighs ecstasy pills stamped with the face of U.S. President Donald Trump after a seizure by Chilean authorities in Concepcion, Chile, February 5, 2020. REUTERS/Jose Luis Saavedra

Frank Huntley looks at his sculpture made out of the opioid pill bottles he got when addicted, set up outside Democratic presidential candidate and former Vice President Joe Biden's campaign event in Somersworth, New Hampshire, U.S., February 5, 2020. REUTERS/Rick Wilking

A sculpture made out of opioid pill bottles is set up next to Democratic presidential candidate and former Vice President Joe Biden's campaign bus in Somersworth, New Hampshire, U.S., February 5, 2020. REUTERS/Rick Wilking

Bottles and pills of Xarelto, marketed by Janssen Pharmaceutical, sit on a counter at a pharmacy in Provo, Utah, U.S. January 9, 2020. REUTERS/George Frey

A pharmacist dispenses pills of Xarelto, marketed by Janssen Pharmaceutical, at a pharmacy in Provo, Utah, U.S. January 9, 2020. REUTERS/George Frey

A participant in a study on the effects of cannabis, consumes pills containing CBD, the nonpsychoactive drug found in cannabis, in Longmont, Colorado, U.S., December 19, 2019. REUTERS/Kevin Mohatt

CDB pills are seen on a chair in the home of a participant in a study on the effects of cannabis in Longmont, Colorado, U.S., December 19, 2019. REUTERS/Kevin Mohatt

A participant in a University of Colorado study on the effects of cannabis, performs a test that measures his balance after consuming CBD pills in Longmont, Colorado, U.S., December 19, 2019. REUTERS/Kevin Mohatt

A participant in a University of Colorado study on the effects of cannabis, performs cognitive tests in a mobile lab after consuming CBD pills in Longmont, Colorado, U.S., December 19, 2019. REUTERS/Kevin Mohatt

A participant in a University of Colorado study on the effects of cannabis, passes time playing video games while waiting for the CBD pills he consumed to take effect before returning to a mobile lab waiting outside his house for more tests, in Longmont, Colorado, U.S., December 19, 2019. REUTERS/Kevin Mohatt

A worker puts cholrine pills in a water tanker amid a shortage of drinking water supplies in Sanaa, Yemen December 12, 2019. REUTERS/Mohamed al-Sayaghi

A worker puts cholrine pills in a water tanker amid a shortage of drinking water supplies in Sanaa, Yemen December 12, 2019. REUTERS/Mohamed Al-Sayaghi

Local municipality specialists hold stable iodine pills during a civil protection functional exercise in case of nuclear disaster in Magunai village, Lithuania October 2, 2019. REUTERS/Ints Kalnins

Zantac heartburn pills are seen in this picture illustration taken October 1, 2019. REUTERS/Brendan McDermid/Illustration

Zantac heartburn pills are seen in this picture illustration taken October 1, 2019. REUTERS/Brendan McDermid/Illustration

Zantac heartburn pills are seen in this picture illustration taken October 1, 2019. REUTERS/Brendan McDermid/Illustration

Zantac heartburn pills are seen in this picture illustration taken October 1, 2019. REUTERS/Brendan McDermid/Illustration

Propecia pills are seen on a tray in a pharmacy in New York City, U.S., August 8, 2019. Picture taken August 8, 2019. REUTERS/Mike Wood To match Special Report USA-COURTS/SECRECY-PROPECIA

Illustration photo shows various medicine pills in their original packaging in Brussels, Belgium August 9, 2019. REUTERS/Yves Herman/Illustration

Illustration photo shows various medicine pills in their original packaging in Brussels, Belgium August 9, 2019. REUTERS/Yves Herman/Illustration

Illustration photo shows various medicine pills in their original packaging in Brussels, Belgium August 9, 2019. REUTERS/Yves Herman/Illustration

Illustration photo shows various medicine pills in their original packaging in Brussels, Belgium August 9, 2019. REUTERS/Yves Herman/Illustration

Illustration photo shows various medicine pills in their original packaging in Brussels, Belgium August 9, 2019. REUTERS/Yves Herman/Illustration

Bottles of the drug Misoprostol, made by Lupin Pharmaceuticals, sit on a shelf at a pharmacy, in this picture illustration taken June 19, 2019 in Provo, Utah, U.S., June 19, 2019. REUTERS/George Frey/Illustration

A pharmacist shows a bottle of the drug Misoprostol, made by Lupin Pharmaceuticals, at a pharmacy in Provo, Utah, U.S., June 19, 2019. Picture taken June 19, 2019. REUTERS/George Frey

A pharmacist shows a bottle of the drug Misoprostol, made by Lupin Pharmaceuticals, at a pharmacy in Provo, Utah, U.S., June 19, 2019. Picture taken June 19, 2019. REUTERS/George Frey

A pharmacist shows a bottle of the drug Misoprostol, made by Lupin Pharmaceuticals, at a pharmacy in Provo, Utah, U.S., June 19, 2019. Picture taken June 19, 2019. REUTERS/George Frey

A pharmacist poses with pills of the drug Misoprostol, made by Lupin Pharmaceuticals, in his hand at a pharmacy in Provo, Utah, U.S., June 19, 2019. Picture taken June 19, 2019. REUTERS/George Frey

A pharmacist drops pills of the drug Misoprostol, made by Lupin Pharmaceuticals, into a digital pill counting and photo machine at a pharmacy in Provo Utah, U.S., June 19, 2019. Picture taken June 19, 2019. REUTERS/George Frey

A pharmacist shows a bottle of the drug Misoprostol, made by Lupin Pharmaceuticals, at a pharmacy in Provo, Utah, U.S., June 19, 2019. Picture taken June 19, 2019. REUTERS/George Frey

A bottle and pills of the drug Misoprostol, made by Lupin Pharmaceuticals, sit in a counting tray at a pharmacy, in this picture illustration taken June 19, 2019, in Provo, Utah, U.S., June 19, 2019. REUTERS/George Frey/Illustration

Bottles of the drug Misoprostol, made by Lupin Pharmaceuticals, sit on a shelf at a pharmacy, in this picture illustration taken June 19, 2019 in Provo, Utah, U.S., June 19, 2019. REUTERS/George Frey/Illustration

A pharmacist removes a bottle of the drug Misoprostol, made by Lupin Pharmaceuticals, from a shelf at a pharmacy in Provo, Utah, U.S., June 19, 2019. Picture taken June 19, 2019. REUTERS/George Frey

Bags of methamphetamine pills are pictured during the 49th Destruction of Confiscated Narcotics ceremony in Ayutthaya province, Thailand, June 26, 2019. REUTERS/Athit Perawongmetha

Thai narcotics officials arrange bags of methamphetamine pills during the 49th Destruction of Confiscated Narcotics ceremony in Ayutthaya province, Thailand, June 26, 2019. REUTERS/Athit Perawongmetha

Thai narcotics officials arrange bags of methamphetamine pills during the 49th Destruction of Confiscated Narcotics ceremony in Ayutthaya province, Thailand, June 26, 2019. REUTERS/Athit Perawongmetha

Thai narcotics officials arrange bags of methamphetamine pills during the 49th Destruction of Confiscated Narcotics ceremony in Ayutthaya province, Thailand, June 26, 2019. REUTERS/Athit Perawongmetha

Thai narcotics officials arrange bags of methamphetamine pills during the 49th Destruction of Confiscated Narcotics ceremony in Ayutthaya province, Thailand, June 26, 2019. REUTERS/Athit Perawongmetha

Thai narcotics officials put bags of methamphetamine pills into a bin during the 49th Destruction of Confiscated Narcotics ceremony in Ayutthaya province, Thailand, June 26, 2019. REUTERS/Athit Perawongmetha

Thai narcotics officials put bags of methamphetamine pills into a bin during the 49th Destruction of Confiscated Narcotics ceremony in Ayutthaya province, Thailand, June 26, 2019. REUTERS/Athit Perawongmetha

Turbah, a piece of wood or clay tablets which are used by shi'ite Muslims on the ground during prayers are seen at Juma Mosque in the old town of Baku, Azerbaijan May 30, 2019. REUTERS/Amr Abdallah Dalsh

A pharmacist holds OxyContin pills made by Purdue Pharma at a pharmacy in Provo, Utah, U.S., May 9, 2019. REUTERS/George Frey

A police officer shows drug pills at a police station in Basra, Iraq December 18, 2018. Picture taken December 18, 2018. REUTERS/Essam al-Sudani