terminology and guidelines for glaucoma ii - Kwaliteitskoepel
terminology and guidelines for glaucoma ii - Kwaliteitskoepel
terminology and guidelines for glaucoma ii - Kwaliteitskoepel
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3.3.2 - COMBINED DRUGS PREPARATIONS<br />
Rational <strong>for</strong> drug combinations.<br />
Anti<strong>glaucoma</strong> eye drops can be combined with each other, as well as added to laser <strong>and</strong> surgical treatments.<br />
Drugs which belong to the same pharmacological group should not be used in combination (e.g. do not combine<br />
two different beta-blockers).<br />
- When available, combined drugs preparations are generally preferrable to two separate instillations of the same<br />
agents; this is due to improved compliance <strong>and</strong> positive influence on dosing schedule <strong>and</strong> quality of life.<br />
- To use more than two drugs in combination is not recommended in most patients (see Ch. 3.4).<br />
- The additional drug(s) should be used only if needed to obtain the aimed-<strong>for</strong> target IOP.<br />
- The effect of drug combinations is only measured in terms of IOP reduction.<br />
- Assuming equal IOP effects, no drug combination is yet known to be preferable in terms of ONH or VF preservation.<br />
- If the first choice treatment has no effect, or tachyphylaxis occurs, change the initial therapy rather than adding a<br />
further drug.<br />
- Increasing the recommended dosage will not result in increased IOP lowering <strong>and</strong> will only cause more side<br />
effects.<br />
DRUG COMBINATIONS - ADDITIVE EFFECT<br />
CURRENT ADDITIONAL DURG<br />
DRUG α2 agonists β-blockers Topical CAIs Cholinergic Prostagl<strong>and</strong>in/Prostamides<br />
α2 agonists + + + +<br />
β-blockers + + + +<br />
Topical CAIs + + + +<br />
Cholinergic + + + +/-<br />
Prostagl<strong>and</strong>ins/<br />
prostamides + + + +/-<br />
Ch. 3 - 21 EGS