Controlled Substances

Start exploring drug and alcohol rehabs today. Treatment providers are available to answer your questions.

Not quite ready to talk?
Get help via SMS today?

Fill in your details and we’ll send you a message via SMS.

Call Back Contact Form

Frequently asked questions

What are controlled substances?

A controlled substance is a drug or chemical whose production, possession, and use are all regulated by the government, such as illegally used drugs or legally prescribed pharmaceuticals.

What are the 4 types of controlled substances?

Opioids, stimulants, depressants, hallucinogens, and anabolic steroids are all controlled substances. Controlled substances with established medicinal uses, such as morphine, Valium, and Ritalin, are only available with a doctor's prescription.

What’s the difference between a drug and a controlled substance?

Controlled substances are medications that can cause physical and mental dependence. Most blood pressure and cholesterol medications are non-controlled medications. Same with diabetes medications (including insulin), asthma inhalers, and antibiotics. 

What do the ‘classes’ of controlled drugs refer to?

This is the grouping system used by the Misuse of Drugs Act to reflect how dangerous a substance is.

Drugs are grouped into a ‘Class’ - either A, B or C according to their risk level, with Class A substances the most dangerous.

What do the ‘schedules’ of controlled drugs refer to?

This is the grouping system used by the Misuse of Drugs Regulations to reflect the different

restrictions that apply to the prescription and monitoring of controlled drugs used for medical

purposes. Drugs are grouped into one of five ‘Schedules’ with Schedule 1 having the tightest


How are controlled drugs regulated?

The Home Office maintains the central list of UK controlled drugs and reviews this list periodically.

Changes to the list can only be made after the Advisory Committee on the Misuse of Drugs (ACMD) has advised the Home Office that changes should be made and a full Public Consultation has taken place.

 Drugs can be “up-classified” if stronger controls need to be in place or can be down-classified

if a substance has been shown to pose less of a safety risk to patients and the public. 

The reclassification of substances can affect how physiotherapists prescribe and/or administer controlled drugs, particularly if the drug is made a controlled drug or is moved into a higher classification that has tighter controls on its use.

Is diazepam a controlled drug?

Benzodiazepines (including diazepam, flunitrazepam and temazepam) Benzodiazepines are class C drugs. Some benzodiazepines belong to schedule 3 and some belong to schedule 4. Possession without a prescription, or supply or production without a licence, is illegal.  

How controlled drugs should be stored?

For safe practice, use a dedicated cupboard to store controlled drugs. Do not use the controlled drugs cupboard for other drugs. If an individual is self-administering controlled drugs, a risk assessment should consider where the controlled drugs will be stored.

Latest News

Pain After Booze : Why Does My Stomach Hurt After Drinking?

Ever felt that gnawing ache or burning sensation in your gut after a night of drinks? You’re not alone. Stomach pain after drinking is a common complaint, and there are a few reasons why it might happen. Let’s delve into the science behind the discomfort and explore ways to soothe your stomach. The Irritating Truth: … Continued


Cocaine Overdose: Understanding the Dangers and Getting Help Safely

Cocaine, a stimulant known for its short-lived burst of energy and euphoria, hides a dark side. Behind the initial high lies a dangerous potential for overdose, with severe health consequences and even death. This article delves into the world of cocaine overdose, equipping you with the knowledge to recognize the signs, understand the dangers, and … Continued


Adult smoking habits in the UK

Adult smoking habits in the UK refer to how often and in what ways people aged 18 and above use tobacco. This includes everything from smoking cigarettes every day to occasionally lighting up, as well as using other tobacco products. Understanding these habits is important for several reasons: Public Health: Smoking causes many diseases that … Continued


Nature Of The Addictions In The UK

Addiction in the UK is a complex issue that is connected to various aspects of society such as healthcare and law enforcement. It affects people from all backgrounds and has negative impacts on families, communities, and the entire nation. Understanding addiction involves not only looking at the uncontrollable use of substances and repetitive behaviors but … Continued