Support us

DrugsUruguay

Learn traffic rules with clear explanations and visual examples in our illustrated book, designed to make studying simple and engaging.

Traffic signs
Traffic rules
Uruguay

190. Drugs

Drugs can seriously affect driving by changing perception, concentration, reaction time, coordination and judgement. Stimulants, cannabis, opioids and other psychoactive substances can each impair driving in different ways, and combining drugs with alcohol or other substances can increase the risk further. The effects may continue even after a person no longer feels intoxicated. Drug-driving laws vary between countries, but drivers should never drive when a substance affects their ability to control the vehicle safely.

How can drugs affect driving?

Drugs can impair concentration, perception, reaction time, coordination and judgement. The effects depend on the substance, dose, individual and whether other substances are also present.

Can cannabis affect driving?

Yes. Cannabis can affect attention, reaction time, coordination and perception, which can make driving unsafe.

Can stimulant drugs affect driving?

Yes. Stimulants can cause overconfidence, agitation, impulsive behaviour and reduced judgement, while their effects may later be followed by fatigue or reduced concentration.

Can drugs still affect you after the main effects have worn off?

Yes. Some substances can continue to affect alertness, coordination or judgement after the strongest effects appear to have passed.

Is combining drugs and alcohol especially dangerous?

Yes. Combining substances can produce stronger or unpredictable impairment and significantly increase the risk of a crash.

How can police test drivers for drugs?

Depending on the country, police may use behavioural observations, saliva tests, saliva analyses or blood tests to detect specified substances.

Are drug-driving laws the same in every country?

No. Some countries prohibit driving above specified drug concentrations, while others focus on impairment or the presence of certain substances. Testing procedures and penalties also vary.

1 Uruguay 2 Pedestrian warning 3 Speed bump 4 Stop sign 5 Roundabout 6 Railway crossing 7 Curve 8 Wrong-way driving 9 Traffic lights 10 Location marker 11 No parking 12 Reversing 13 Bus 14 Police 15 Ambulance 16 Pothole 17 Path 18 Particulates 19 Air pollution 20 Rush hour 21 Road code 22 Street gutter 23 Cargo bike 24 Forestry vehicle 25 Construction vehicle 26 Semi-trailer truck 27 Trolleybus 28 Speed pedelec 29 Delivery vehicle 30 Idling 31 Tow truck 32 Four-wheel drive 33 Bicycle 34 Motorcycle equipment 35 Rail track 36 Caravan 37 Trailer 38 Tow hitch 39 Siren 40 Convoy 41 Emergency vehicle lighting 42 Agricultural machinery 43 Electric bicycle 44 Electric vehicle 45 Pedelec 46 Quadricycle 47 Microcar 48 All-terrain vehicle 49 Van 50 Recreational vehicle 51 Scooter 52 Trikke 53 Personal mobility device 54 Skateboard 55 Segway 56 Kick scooter 57 Roller skates 58 Mailman 59 Hitchhiker 60 Toddler 61 Child 62 Disability 63 Motorail 64 km/h 65 mph 66 Speedometer 67 Ride height 68 Dirt road 69 Driving 70 Start-stop system 71 Manual transmission 72 Automatic transmission 73 Throttle 74 Tachometer 75 Steering wheel 76 Power steering 77 Visual scanning 78 Mirror 79 Fuel 80 Fuel gauge 81 Petrol 82 Diesel 83 Diesel exhaust fluid 84 Car insurance 85 First aid kit 86 Fire extinguisher 87 High-visibility clothing 88 First aid 89 Concrete step barrier 90 Barriers 91 Vehicle lights 92 Street lights 93 Dipped beam 94 High beam 95 Fog lights 96 Front fog lights 97 Rear fog lights 98 Side lights 99 Turn signals 100 Hazard lights ... 101 Dashboard lights 102 Bicycle lighting 103 Bicycle bell 104 Headlight flashing 105 Seat belt 106 Child restraints 107 Head restraints 108 Airbag 109 ABS 110 Esp 111 Traction control system 112 Helmet 113 Bicycle helmet 114 Hands-free 115 Smartphone 116 GPS 117 Brake 118 Handbrake 119 Brake fluid 120 Tyres 121 Tyre code 122 Winter tyres 123 Tyre pressure 124 Snow chains 125 Bicycle tyre 126 Continuous track 127 Gross Vehicle Weight 128 Gross Vehicle Weight Rating 129 Cargo 130 Car body 131 Trunk 132 Roof rack 133 Windscreen 134 Emergency hammer 135 Car battery 136 Traction battery 137 Suspension 138 Shock absorber 139 Spring 140 Exhaust 141 Exhaust gas 142 Soot 143 Catalytic converter 144 Engine 145 Petrol engine 146 Diesel engine 147 Electric motor 148 Timing belt 149 Glow plug 150 Cylinder 151 Engine oil 152 Coolant 153 Maintenance 154 Spare tyre 155 Flat tyre 156 Jack 157 Vehicle inspection 158 Key 159 Dashboard 160 Windscreen wiper 161 Doors 162 Glovebox 163 Visibility 164 Rain 165 Fog 166 Hail 167 Sunlight 168 Sunglasses 169 Salt 170 Air conditioning 171 Hydroplaning 172 Distraction 173 Emotions 174 Road rage 175 Health 176 Epilepsy 177 Night blindness 178 Visual impairment 179 Fatigue 180 Defects 181 Traffic violation 182 Alcohol 183 Alcohol control 184 Ignition interlock device 185 Breath test 186 Breath analysis 187 Blood alcohol content 188 Blood test 189 Saliva test 190 Drugs 191 Medication 192 Penalties 193 Speeding 194 Smoking 195 Traffic enforcement camera 196 Accident 197 Injuries 198 Nosebleed 199 Damage 200 Breakdown 201 Warning triangle 202 Traffic rules 203 Driving school 204 Traffic signs